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imageRAID_160.book Page 1 Friday, November 14, 2003 4:14 PM
U S E R ' S G U I D E
SCSI SeriesR A I D S T O R A G E S Y S T E M
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imageRAID_160.book Page 3 Friday, November 14, 2003 4:14 PM
U S E R ' S G U I D E
SCSI SeriesR A I D S T O R A G E S Y S T E M
imageRAID_160.book Page 4 Friday, November 14, 2003 4:14 PM
Fujitsu Europe Limited
Restricted Rights and Liability
No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, recording, or otherwise, in whole or part, without prior written permission from Fujitsu Europe Limited.
Fujitsu Europe Limited shall not be liable for any damages or for the loss of any information resulting from the performance or use of the information contained herein. Your rights to the software are governed by the license agreement included with any accompanying software. Fujitsu Europe Limited reserves the right to periodically revise this manual without notice. Product features and specifications described are subject to change without notice.
Copyright
Fujitsu Europe LimitedHayes Park CentralHayes End RoadHayes, Middlesex, England UB4 8FE
Copyright © 2003 Fujitsu Europe Limited. All rights reserved.
imageRAID and the imageRAID logo are registered trademarks of Fujitsu Europe Limited, Fujitsu is a registered trademark of Fujitsu Limited.
Other company and product names herein may be trademarks or registered trademarks of their respective companies.
Agency Notes
WARNING: Drives and controller/adapter cards described in this manual should only be installed in UL-listed and CSA
certified computers that give specific instructions on the installation and removal of accessory cards (refer to your
computer installation manual for proper instructions).
ATTENTION: Les lecteurs et cartes contrôleurs décrits ici ne doivent être montés que sur des ordinateurs homologués (UL et
CSA) et livrés avec des manuels contenant les instructions d’installation et de retrait des accessoires. Reportez-
vous au manuel d’installation de votre ordinateur.
SERVICE NOTE: Remove the power cables prior to servicing this equipment.!
Contents
imageRAID_160.book Page i Friday, November 14, 2003 4:14 PM
About this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vWelcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vFeatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vi
1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Power System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Standard AC Hot Swappable Power Supplies . . . . . . . . . . . . . . 4Optional DC Hot Swappable Power Supplies . . . . . . . . . . . . . . 5
Cooling Fan Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7SAF-TE Disk I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9SCSI SAF-TE Cluster Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Spin-Up Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Host SCSI I/O Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13Single Bus Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14imageRAID Controllers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15RS-232 Service Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Control and Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Status Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Power-On LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Channel Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Power Supply Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Fan Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2 Theory of Controller Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Operating Modes Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Stand-Alone Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Active-Active Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
i
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Active-Passive Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Understanding Mirrored Operations . . . . . . . . . . . . . . . . . . . . . 31
A Word about Clustering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Minimizing Downtime for Maximum Data Availability . . . . . . . . 32How Available are Clusters? . . . . . . . . . . . . . . . . . . . . . . . . . . . 34Application of Availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
3 Setup and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Storage System Detailed Installation . . . . . . . . . . . . . . . . . . . . . . 36
Installing the Storage System Enclosure into the Rack Cabinet . . 36Installing the Storage System into the Tower Stand . . . . . . . . . . 39Completing the Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Cabling the DC Power Supplies . . . . . . . . . . . . . . . . . . . . . . . 43Before You Continue... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45Special Note for Microsoft Windows 2000/2003 Installations . . . . 45Enclosure Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
imageRAID IRS-JBOD - 12 Drive Configuration . . . . . . . . . . . . 46imageRAID IRS-JBOD - 24 Drive Configuration . . . . . . . . . . . . 51imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration . . . 54imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration . . . 56imageRAID IRS-1U160 - 36 Drive Configuration. . . . . . . . . . . . 59
Topology Host Cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Stand-Alone Single Port:Host Cabling . . . . . . . . . . . . . . . . . . . 64Stand-Alone Dual Port:Host Cabling . . . . . . . . . . . . . . . . . . . . 66Active-Active Single Port:Host Cabling. . . . . . . . . . . . . . . . . . . 69Active-Passive Dual Port:Host Cabling . . . . . . . . . . . . . . . . . . . 74Single Bus Clustering Configuration . . . . . . . . . . . . . . . . . . . . 76
Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79Powering On the Storage System . . . . . . . . . . . . . . . . . . . . . . . . 80Powering Off the Storage System . . . . . . . . . . . . . . . . . . . . . . . . 80
4 Accessing the imageRAID Controllers . . . . . . . . . . . . . . . . . . . . . . 81Accessing the Disk Array Administrator Software/VT-100 . . . . . . 82Menu System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84Updating imageRAID Controller Firmware . . . . . . . . . . . . . . . . . 86
5 Monitoring Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89Enclosure Component Monitoring . . . . . . . . . . . . . . . . . . . . . . . 89
Status Indicator LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Power-On LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
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Channel Status LED. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Power Supply Status . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90Fan Status. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Drive LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91Drive Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92Drive Activity LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Audible Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92LED Matrix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
One-Touch Annunciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95Enclosure SAF-TE Monitoring . . . . . . . . . . . . . . . . . . . . . . . . . . . 99Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware 101
Enclosure Fan Speed Control . . . . . . . . . . . . . . . . . . . . . . . . . . . 105SAFTE Commands Debug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
6 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109General Enclosure Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 109Common SCSI Bus Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 109Terminal Emulator and COM Port Problems . . . . . . . . . . . . . . . . 112Host SCSI Channel Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 113Device SCSI Channel Problems . . . . . . . . . . . . . . . . . . . . . . . . . 113Problems During Bootup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114Controller Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115Common Problems and Interpreting the LEDs . . . . . . . . . . . . . . 115Warning and Error Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Disk Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118Disk Channel Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121Removing the Front Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121Replacing the Cooling Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123Replacing an AC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . 125Replacing a DC Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . 127Replacing a Disk Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card . . 131Replacing the Host SCSI I/O Card . . . . . . . . . . . . . . . . . . . . . . . 133Replacing a imageRAID Controller . . . . . . . . . . . . . . . . . . . . . . 135
Replacing a “Killed” Controller When in Active-Active/Active-Passive Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Replacing the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
iii
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A Technical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
B Port Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145VHD/CI SCSI Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145SAF-TE Service Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148imageRAID Controller Service Ports . . . . . . . . . . . . . . . . . . . . . . 148Null-Modem Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
DC Power Supply Connector Pinout . . . . . . . . . . . . . . . . . . . . . 150
C Regulatory Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151Compliance Information Statement . . . . . . . . . . . . . . . . . . . . . . 151FCC Class A Radio Frequency Interference Statement . . . . . . . . . 152Class A Taiwanese Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . 153Class A Japanese Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153CE Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153Power Cord Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Preface
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About this Manual
Welcome
Congratulations on the purchase of your new imageRAID® SCSI Series Storage
System from Fujitsu Europe Limited. The imageRAID SCSI Series is a very
high-performance fully fault-tolerant SCSI JBOD and RAID based storage system.
It’s unique 2U design is optimized to fit in the compact space of today’s data
center rack enclosures and as a deskside tower system.
At its core is the imageRAID SCSI JBOD storage enclosure which supports up to
twelve hot pluggable 1-inch high Ultra320 or Ultra160 disk drives all in a 2U
(3.47-inch) form factor enclosure. Full component redundancy is provided through
hot pluggable cooling fan module and independent power supplies. RAID
functionality is provided through an embedded Ultra160-to-Ultra160 SCSI RAID
Controller. The imageRAID SCSI RAID-based storage systems are available in two
model configurations, either as a single controller configuration designed for
Stand-Alone topologies, or dual controllers configuration for Active-Active or
Active-Passive topologies.
Product Identification
Storage Enclosure Number of Controllers Model of Controller
IRS-JBOD 0 JBOD
IRS-1U160xx-xx 1 imageRAID Controller (JSS122)
IRS-2U160xx-xx 2 imageRAID Controller (JSS122)
v
About this Manual
vi
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This user’s guide is your complete documentation to set up the storage system
hardware, add components, cable the storage system components, replace parts,
and diagnose/repair your system.
For information on the software control, management and configuration, refer to
one of the following: VT-100 Software Guide or the AdminiStor Software Guide.
Features
The imageRAID SCSI Series Storage Systems are designed for mission critical
applications requiring the highest performance with uncompromised data
reliability, such as mid-range and enterprise server storage. They maintain
exceptionally high throughput and are ideally suited for high bandwidth data
intensive applications, such as electronic commerce, digital video, CAD, seismic
research, digital pre-press, and 3-D imaging.
The following are major features of the imageRAID SCSI Series Storage Systems:
� Ultra160 SCSI storage system enclosure.
� Ultra160-to-Ultra160 SCSI RAID Controller for RAID-based systems.
� Supports up to 12 drives in JBOD mode and 36 drives in RAID
configurations.
� A standard AC power supply with an option for a redundant second power supply.
� Optional DC power supply with an option for a redundant second power supply.
� Designed to fit standard 19-inch rack enclosures or a deskside tower.
� Sequential data transfers from disk arrays at over 320 MB per second
sustained in JBOD mode and 160 MB per second with the RAID Controller
option installed.
� Greater than 18,000 IOPs capability from a single controller.
� Active-Active failover with dual hot-pluggable controllers.
� Operating system independent – no special software or drivers required.
� Ultra160 low-voltage differential single (LVDS) host ports.
Features
About this Manual
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� Up to three UltraLVD SCSI 160 MB/sec disk channels (A host channel is
used in some configurations as a disk channel to provide the third disk
channel.).
� Support for up to 36 disk drives organized in up to 24 arrays and a total of
64 logical unit numbers (LUNs).
� Supports clustering environments.
� All SCSI channels are backward compatible Ultra2 LVD and
Ultra/Fast/Asynchronous single-ended SCSI modes.
� All SCSI channels support SPI-3 Cyclic Redundancy Check (CRC) and
Domain Validation.
� Support for cache memory options from 64 MB up to 512 MB using
standard PC-133 compatible SDRAM. DIMMs must be qualified by nStor.
� Support for RAID levels 0, 1, 3, 4, 5, 10, 50, and just a bunch of disks
(JBOD).
� Online capacity expansion allowing reconfiguration without interruptions.
� Drive Roaming for no loss of RAID and LUN configurations.
� Advanced disk utilities, array verification and recovery, and spare pooling.
� Firmware can be upgraded either in-band over the SCSI bus or out-of-band
via the RS-232 service port.
� Continuous runtime diagnostics for warnings and automatic shutdown for
out-of-spec temperature and voltages, battery failures, and internal errors.
Features vii
About this Manual
viii
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Features
Chapter 1
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Getting Started
This chapter provides a description of the enclosure components and its onboard
monitoring systems.
The Components section identifies and gives a complete description of each
major component. The Monitoring section describes the enclosure’s LEDs, and
the manner in which the normal and abnormal conditions are presented.
imageRAID SCSI Series Storage System
RESET ALARM
RES
ET A
LAR
M
Tower Model
Rack-Mount Model
1
Chapter 1 - Getting Started
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At a Glance
The following illustrations show the featured components of the imageRAID SCSI
Series Storage System. Familiarize yourself with its components prior to installing
and using the storage system.
Enclosure Component Identification
CTRL 2
CTRL 1
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 3
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
350-watt hot pluggableindependent power
supplies (AC shown)
Dual in-line80-CFM hot
swappablecooling fans
SAF-TE Disk I/O Card orSCSI SAF-TE Cluster Card
Host SCSI I/O Cards
SAF-TE Service &Controller Service Ports
Controller 2Controller 1
ControllerCover Plate
Optional Dual SCSI-to-SCSIRAID Controllers
Channel 1
CH 3Channel 0
CH 0
Channel 2
RESET ALARM
Drive Status LEDs(left column of LEDs)
Power On LED
Channel Status LED
Power Supply Status LED
Fan Status LED
Alarm Reset Button
Drive Activity LEDs(right column of LEDs)
At a Glance
Chapter 1 - Getting Started
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Components
This section provides a description of each of the major components that
comprise the imageRAID SCSI Series Storage System.
Front Bezel
The front bezel houses the Status LEDs, Drive LEDs, and alarm reset button. When
removed, the user has access to the disk drives. The front bezel can be installed or
removed without interruption to system activities.
Embedded within the front bezel is the electronic package that provides the
communication with the SAF-TE processors (SEP). The SAF-TE processors control
the signals to the front panel through a smart interconnect. Refer to “Control and
Monitoring” on page 17 for details on the monitoring functions.
Power is applied to the front bezel through a smart interconnect edge connector,
where a control circuit monitors the bezel for a proper connection. When the bezel
is properly installed and power is applied to the enclosure, the bezel is
immediately energized.
Removable Front Bezel
To remove the bezel and gain access to the disk drives, use a Phillips screwdriver
to release both bezel fasteners, then grasp and remove the bezel. The fasteners
rotate one-quarter turn clockwise to lock and counter-clockwise to unlock.
Reset Alarm
Dr ive LEDs
Alarm Reset Button
Status LEDs
Components 3
Chapter 1 - Getting Started
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Power System
Standard AC Hot Swappable Power Supplies
The AC power system consists of two 350-watt hot-pluggable power supplies, each
with independent AC power cords and cooling fans. This power system provides
the enclosure with “N+1” redundant power. Each power supply has auto-switching
circuitry for use with either 100V or 240V AC systems.
Power Supply
Power is applied to the enclosure by pressing each of the two power supply
On/Off switches to their “On” position. A Power On LED located on each power
supply will be illuminated indicating that AC power has been applied. The front
bezels’ Power On LED will also be illuminated indicating that power has been
applied.
Each power supply also incorporates an amber general Fault LED. If the power
supply is installed and power is not applied to the power supply or the power
supply cooling fan fails, the Fault LED will illuminate, along with an audible alarm.
The front bezels’ Power Supply Status LED will illuminate green when both
power supplies are on and operating normally. If only one power supply is
operational, the Power Supply Status LED will be illuminated amber.
Each power supply has an AC Power Cord Module. The module has a power
cord bale incorporated into the design to secure the power cord once it has been
properly inserted. The bale prevents inadvertent disconnects.
Fault LED
Power On LED
Blank Plate
Power System
Chapter 1 - Getting Started
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Optional DC Hot Swappable Power Supplies
The DC power system is designed to allow the storage system to be installed with
Telco system hardware isntallations. It consists of two 350-watt hot-pluggable
power supplies, each with independent DC power cables and cooling fans. It
provides the enclosure with “N+1” redundant power with Telco hardware. Each
power supply cables directly with your DC power feed system.
DC Power Supply
The DC power supply has the same user features to that of the AC Hot
Swappable Power Supplies described on the previous page.
NOTE: The DC system must be installed in a restricted access location, in
accordance with intent of the National Electrical Code. A restricted access
location is defined as an area intended only for qualified or trained
personnel only. Access should be controlled by key lock or access card.
Each power supply has a special cable connector that plugs into the face of the
power supply and mechanically connects to your DC feed system. Refer to the
Installation chapter for cabling procedures.
DC Source Site Requirements
Electrical Equipment Requirement
Voltage -36 to -72 VDC
Max. Operating Current 13.5 amp to 6.3 amps
Max. Input Surge Current 20.25 amps
Power On LED(green)
Fault LED(amber)
ReleaseLatch
Power Connector
Optional DC Hot Swappable Power Supplies 5
Chapter 1 - Getting Started
6
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The power feed must be electrically isolated from any AC power source, provide
a reliable connection to earth (battery room positive bus is connected to the
grounding electrode), and capable of providing up to 600 watts of continuous
power per feed pair.
Overcurrent Protection Requirements
Overcurrent protection devices must be provided as part of each equipment rack.
Circuit breakers must be located between the DC power feed source and the
power supplies (two 20 amp double-pole fast rip DC-rated circuit breakers for
each power supply).
NOTE: Overcurrent protection devices must meet applicable national and local
electrical safety codes and be approved for the intended application.
Power supply overload protection will shut down the power supply when the
output power rating exceeds 110% to 130% of maximum rated output current.
DC Supply and Ground
You DC supply and ground conductor must meet the following requirements:
� Suitable condustor material: copper only.
� Power supply connections through the input connectors; 12AWG:
-48V
-48V Return
Ground to the power supply
� System ground conductor: 8 AWG.
� Cable insulation rating: minimum of 75 C, low smoke fume (LSF), flame
retardant.
� Branch circuit cable insulation color: per applicable national electrical
codes.
� Cable type: UL style 1028, UL 1581(VW-1), IEEE 383 compliant, or IEEE
1202-1991 compliant.
� Grounding insulation color: green/yellow.
Optional DC Hot Swappable Power Supplies
Chapter 1 - Getting Started
imageRAID_160.book Page 7 Friday, November 14, 2003 4:14 PM
Cooling Fan Module
The cooling system consists of two high-performance (80-CFM) cooling fans
mounted in a single fan module which slides into a bay at the rear of the
enclosure. The design of the fan module provides for an easy-to-install user-
replaceable component in a live environment without interruption of service.
If any one fan should fail, cooling redundancy and efficiency are degraded. The
cooling fans and enclosure temperature are constantly monitored by the SAF-TE
processor for fault conditions. In the event of a fault condition the front panel Fan
Status LED will change from a green state to a solid amber state in the case of a fan
failure, or to a blinking amber green state in the case of an over-temperature
condition. In both cases an audible alarm sounds. The SAF-TE processor will also
provide notification data to monitoring software, such as StorView.
WARNING: Do not operate the enclosure for extended periods of time (greater
than 5 minutes) with the cooling fan module removed.
Cooling Fan Module
The enclosure has temperature sensors in three different areas, the drive bay, the
imageRAID Controllers, and the power supplies. There are several processes the
storage system takes to prevent component damage due to over temperature
conditions.
Fan Speed Override ControlJumpers JP1 (Fan 0)and JP2 (Fan 1)
Cooling Fan Module 7
Chapter 1 - Getting Started
8
imageRAID_160.book Page 8 Friday, November 14, 2003 4:14 PM
If the drive bay area reaches a temperature of 50°C (122°F) an audible alarm will
sound, the front panel Fan Status LED will toggle amber green, and the monitoring
software will post a warning message. These notifications give the user a warning
that some condition is causing the enclosure temperature to exceed the preset
value, and an action is required by the user to determine the cause and take
corrective measures. It may be due to a blockage of air flow or a low fan speed.
If any controller reaches a temperature of 50°C (122°F) an audible alarm will
sound, the front panel Fan Status LED will alternate amber and green, and the
monitoring software will post a warning message. If the temperature on any
controller continues to rise, the controller will flush its cache and shutdown. If it is
the only controller (Simplex mode) or the only remaining controller (surviving
controller from a failed over operation) then the controller will also spin down the
disk drives at this temperature.
If any power supply reaches 85°C (185°F) the power supply will shut down.
The SAF-TE Disk I/O card has a firmware-based VT-100 interface which provides
an option to manage fan speed. This option provides a whisper mode fan
operation for noise sensitive environments. When enabled (default), and based on
a set of conditions, the software will manage the cooling fans RPM speed to
maintain the enclosure temperature while minimizing noise levels. Refer to
“Enclosure Fan Speed Control” on page 105 for more details on using this option.
A manual override of the fan speed control is available for special circumstance
environments. Referring to the illustration on the preceding page, two jumpers are
provided on the fan module printed circuit board to override the software control
of the fan speeds. This hardware setting routes full power voltage to the fans for
maximum operational speed, which is greater than the maximum speed set by the
automatic software control. This configuration is normally used when fan speed
noises are not an issue, and the ambient operating temperature is at or above 30°C
(86°F), thus ensuring that maximum available cooling is being provided.
The jumpers JP1 and JP2 by default are offset, which enables the automatic fan
speed control. The jumper JP1 controls Fan 0 and JP2 controls Fan 1. Placing the
jumper on both pins for each jumper will override the automatic setting and
configure the fans to maximum power.
Cooling Fan Module
Chapter 1 - Getting Started
imageRAID_160.book Page 9 Friday, November 14, 2003 4:14 PM
SAF-TE Disk I/O Card
WARNING: The SAF-TE Disk I/O card is NOT HOT SWAPPABLE. You must
POWER DOWN the enclosure prior to removing or installing this card.
The SAF-TE Disk I/O card provides the built-in environmental and system status
monitoring, as well as, host connectivity to the disk drives, It also houses the
switches for setting SCSI IDs, VT-100 communication protocols, and drive spin up
options.
This card has two SAF-TE processors (SEPs) that continuously monitors the
enclosure for temperature status, fan status, power supply status, and SCSI
channel status. The SEPs are responsible for reporting environmentals and system
status to the front bezel LEDs/audible alarms and external monitoring software.
The monitoring system is fully compliant with SAF-TE specification protocol
version 1.0.
At power up, the SAF-TE processors read the SCSI switch settings and configures
the system for the appropriate addresses. It then executes instructions from
firmware performing a self-test diagnostics. The firmware is flash upgradeable
using the SAF-TE RS-232 Service port located below the I/O card slots at the rear
of the enclosure. The firmware also contains the necessary functions for
enclosure management via a VT-100 interface.
NOTE: Specific switch settings are discussed later in the Installation chapter.
SAF-TE Disk I/O Card
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
SAF-TE Disk I/O Card 9
Chapter 1 - Getting Started
10
imageRAID_160.book Page 10 Friday, November 14, 2003 4:14 PM
The SAF-TE Disk I/O card has two 68-pin VHD/CI SCSI connectors which
provides the connectivity from the host computer to the disk drives and drive
connectivity to the expansion JBOD enclosures. The connectors are labeled
“Channel 1” and “Channel 2.”
In JBOD dual-bus mode, the Channel 1 connector provides SCSI bus access
to drive slots 1 through 6, and the Channel 2 connector provides access to
the drives in slots 7 through 12.
In JBOD single-bus mode, the Channel 1 connector provides SCSI bus access
to all the drives, slots 1 through 12.
NOTE: Termination is automatic and provided from the drive mid-plane circuit
board. Termination is configured using two sets of jumpers on the card.
These jumpers enable and disable the automatic termination. Add the jumper
(installed on both pins) for JP8 on Channel 1 and JP7 for Channel 2 which
disables the automatic termination feature. (The default position is the jumper is
offset or unjumpered.)
In daisy-chain configurations, you must make changes to the jumper settings in
the enclosure’s SAF-TE Disk I/O card in that appears at the end of the
daisy-chain. In each supported configuration, a IRS-JBOD enclosure will be the
enclosure at the end of the daisy chain. In some configurations multiple
IRS-JBOD enclosures can appear at the end of the chain. Those enclosures will
need to have their jumper settings, JP7 and JP8, set to the jumpered position or
installed on both pins. During installation, instructions are provided to correctly
configure the daisy-chain enclosure settings.
SCSI SAF-TE Cluster Card
WARNING: The SCSI SAF-TE Cluster card is NOT HOT SWAPPABLE. You must
POWER DOWN the enclosure prior to removing or installing this card.
The SCSI SAF-TE Cluster card provides the host connectivity to the disk drives and
the built-in environmental and system status monitoring. The card incorporates
dual Ultra320 SCSI bus expanders to couple and isolate bus segments without
any impact to the protocol.
SCSI SAF-TE Cluster Card
Chapter 1 - Getting Started
imageRAID_160.book Page 11 Friday, November 14, 2003 4:14 PM
The card provides switches for setting the SCSI IDs, VT-100 communication
protocols, and drive spin up options. Two jumpers are provided to control the
ability to enable or disable the clustering bus isolation capabilities.
SCSI SAF-TE Cluster Card
The Ultra320 bus expanders re-time the SCSI signals as necessary to guarantee
SCSI bus signal timings. They provide precise delay control which maintains
precise SCSI bus timings.
The use of the Ultra320 bus expanders allows the full support of clustering
environments where a system can be removed in a live environment without
bringing down the bus, therefore ensuring an ideal solution for high availability
clustering systems.
The SCSI SAF-TE Cluster card has two SAF-TE processors (SEPs) that continuously
monitor the enclosure for temperature status, fan status, power supply status, and
SCSI channel status. The SEPs are responsible for controlling the front bezel LEDs
and audible alarms. The data is also sent to any external monitoring software.
This monitoring system is fully compliant with SAF-TE specification protocol
version 1.0.
At power up, the SAF-TE processors read the SCSI switch settings and configures
the system for the appropriate addresses. It then executes instructions from
firmware performing a self-test diagnostics.
The SAF-TE processor firmware is flash upgradeable using the RS-232 Service
port located below the IO card slots at the rear of the enclosure. The firmware
also contains the necessary functions for enclosure management via a VT-100
interface.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
SCSI SAF-TE Cluster Card 11
Chapter 1 - Getting Started
12
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The SCSI SAF-TE Cluster card has two 68-pin VHD/CI SCSI connectors which
provides the connectivity from the host computer(s) to the disk drives and drive
connectivity to expansion JBOD enclosures. The connectors are labeled “Channel
1” and “Channel 2.”
In JBOD single-bus mode, the Channel 1 connector provides SCSI bus access to
all the drives, slots 1 through 12.
NOTE: Termination is automatic and provided internally.
To enable fault-tolerant clustering support the jumpers, JP7 and JP8, should be
offset (default setting). During installation setup, instructions are provided to
correctly configure the jumper settings. If the jumpers are installed on both pins
you will loose the clustering support capabilities. And removing the cables or
bringing down the system from one side will cause loss of access to the disk
drives and the other systems. Refer to the illustration “SCSI SAF-TE Cluster Card”
on page 11.
Spin-Up Settings
Switches 7 and 8 control the drive spin-up functions. The switches are directly
attached to all of the drive slot start signals. Switch 7 controls the “Start_1” signal
(Delay Spin-up) and switch 8 controls the “Start_2” signal (Remote Spin-up).
The table below describes the function of each switch.
“DL” Switch 7 “RM” Switch 8 Drive Spin-up Mode
Down (0)* Down (0)* Drive motor spins up at DC power on.
Down (0) Up (1) Drive motor spins up only on SCSI “start” commands.
Up (1) Down (0) Drive motor spins up after a delay of 12 (may vary depending on drive type) seconds times the numeric ID setting of the associated drive.
Up (1) Up (1) Drive motor will not spin-up.
* Default setting for proper operation.
Spin-Up Settings
Chapter 1 - Getting Started
imageRAID_160.book Page 13 Friday, November 14, 2003 4:14 PM
Host SCSI I/O Card
WARNING: The Host SCSI I/O card is NOT HOT SWAPPABLE. You must POWER
DOWN the enclosure prior to removing or installing this card.
The Host SCSI I/O cards, also known as I/O cards, are installed IRS-1U160/
IRS-2U160 Series Storage systems. Each card has two 68-pin VHD/CI SCSI
connectors which provides the connectivity from the host computer to Channel 0
and Channel 3 of each imageRAID Controller. The connectors are labeled
“Channel 0” and “Channel 3.”
The Host SCSI I/O cards are not associated to one controller or the other, and
therefore, host connections can be made via either cards’ channel connector.
Under some configurations, Channel 3 can be configured as a drive channel. This
allows further expansion of the drive channels, which are in addition to the two
channels provided on the SAF-TE Disk I/O card.
NOTE: The SAF-TE Disk I/O card provides Channels 1 and 2 SCSI drive ports.
Cabling diagrams are provided in the Installation chapter for each supported
topology. To ensure proper failover and failback operations and LUN
presentation, cable your system based on the diagram for your selected topology.
Host SCSI I/O Card
The Host SCSI I/O cards incorporate an automatic termination feature and does
not require external terminators.
JP1 ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Termination Jumpersfor Host Channels 0 and 3
Channel 0
Channel 3
I/O
Host SCSI I/O Card 13
Chapter 1 - Getting Started
14
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Jumpers on the card are provided to configure Term Power and Termination,
however their settings do not require any changes for the RAID enclosure. The
default settings are: JP1 and JP2 unjumpered or offset, and JP3 and JP4 installed
on both pins.
NOTE: In some circumstances, if the host system does not see the imageRAID
Controllers, remove the Host SCSI I/O card and install the jumpers JP1 and
JP2 on both pins to disable termination. This should resolve the problem.
Single Bus Module
The IRS-JBOD enclosure can be configured as a continuous single SCSI bus. This
option is provided to meet the application needs to address all of the disk drives
on one SCSI bus.
Removing the cover plate and installing the Single Bus Module configures the
internal bus from a split-bus to a single continuous bus.
Installing the Single Bus Module and Cover Plate
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Cover Plate
Single-BusModule
Single Bus Module
Single Bus Module
Chapter 1 - Getting Started
imageRAID_160.book Page 15 Friday, November 14, 2003 4:14 PM
imageRAID Controllers
The enclosure houses one or two imageRAID Controllers. It supports
configurations for single controller Stand-Alone topologies and dual controller
Active-Active/Active-Passive topologies.
The imageRAID Controller is a Ultra160-to-Ultra160 SCSI RAID controller. It has
four Ultra160 host ports and two Ultra160 SCSI disk channel ports. This controller
is occasionally referred to throughout this manual and in the software as a JSS122
model.
The controller operates in one of three different modes: Stand-Alone, Active-Active.
or Active-Passive. In the Stand-Alone mode, the controller operates autonomously.
In the Active-Active/Active-Passive mode, the two controllers operate as a pair. If
one controller fails in the Active-Active/Active-Passive mode, the other can take
over the failed controller’s work.
imageRAID Controller
The Disk Array Administrator software is embedded in the controller firmware,
and requires no specific software drivers for the host operating system. These
utilities are accessed through the Java-based AdminiStor storage management
software or a VT-100 terminal. (See either the AdminiStor Software Guide or the
VT-100 Software Guide.)
Ejector Handles
imageRAID Controllers 15
Chapter 1 - Getting Started
16
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RS-232 Service Ports
Located below the I/O card slots is the SAF-TE service port and two imageRAID
Controller service ports. Refer to the illustration under “At a Glance” for the port
locations on the rear panel.
SAF-TE Service and imageRAID Controller Service Ports
The SAF-TE Service port provides an RS-232 serial interface to the SAF-TE Disk
I/O card allowing firmware uploads, and maintenance/service monitoring of the
SEPs. This port is labeled “SAF-TE.”
The two imageRAID Controller service ports, which are labeled “CTRL 1” and
“CTRL 2,” provide an interface to each imageRAID Controller. They provide
access to the firmware-based Disk Array Administration software and provide
options to update the firmware. The ports are standard DB9 connectors which
provides a connection using a null-modem serial cable for VT-100 terminal and
host serial port communication via emulation software.
CTRL 1
CTRL 2
SAF-TEController 1: Service Port
SAF-TE Service Port
Controller 2: Service Port
RS-232 Service Ports
Chapter 1 - Getting Started
imageRAID_160.book Page 17 Friday, November 14, 2003 4:14 PM
Control and Monitoring
An integral part of the imageRAID SCSI Series Storage System is its control and
monitor capabilities.
The SAF-TE processors provide monitoring data for the enclosure environmental
conditions such as enclosure temperature, cooling fans, power supplies, and SCSI
bus status. This data is reported to the monitoring system to provide LED and
audible alarm notifications. This monitored information is also communicated to
external monitoring software.
Refer to “VT-100 Interface Enclosure Monitoring” on page 110 for complete
details.
The imageRAID Controllers provide monitoring data for its environmental
condition and logical arrays. They communicate that data to the front bezel LEDs,
third-party configuration and monitoring software, and the VT-100 Disk Array
Administration firmware-based software interface for management and
monitoring. (Refer to the software user’s guide for configuration, management,
and monitoring of the controllers and logical arrays.)
Front Bezel LEDs and Reset Button Identification
Reset Alarm
Drive Status LEDs(left column of LEDs)
Fan Status LED
Drive Activity LEDs(right column of LEDs)
Power On LED
Channel Status LEDPower Supply Status LED
Alarm Reset Button
Control and Monitoring 17
Chapter 1 - Getting Started
18
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The imageRAID SCSI Series incorporates a “One-Touch Annunciation” which
provides an LED readout of the current switch configuration, host interface type,
bus configuration, communication BAUD setting, drive spin-up settings, and
controller status. Refer to “One-Touch Annunciation” on page 95 for more details.
Status Indicator LEDs
The Status Indicator LEDs comprise the Power-On LED, Channel Status LED,
Power Supply Status LED, and Fan Status LED. These series of LEDs are grouped
on the right side of the front bezel directly above the Alarm Reset button. The
following is an description of each LED.
Power-On LED
The Power-On LED signifies that the enclosure is powered on and will be
illuminated green when power has been applied.
Channel Status LED
The Channel Status LED will remain green at all times when the enclosure is
setup in JBOD mode. However, the LED will indicate the status of the logical
array(s), when enclosure is setup in a RAID configuration.
Power Supply Status
The Power Supply Status LED indicates the condition of the power supplies. The
LED will illuminate steady green when both power supplies are functioning
normally and will change to amber if one power supply should fail or is turned off.
Fan Status
The Fan Status LED indicates the condition of the cooling fans. The LED will
illuminate green when both fans are functioning normally and will change to
amber if any of the fans fail.
Status Indicator LEDs
Chapter 1 - Getting Started
imageRAID_160.book Page 19 Friday, November 14, 2003 4:14 PM
Drive LEDs
The Drive LEDs are located on the left side of the front bezel in between the
ventilation ribs and comprise the Drive Status LEDs and Drive Activity LEDs. The
Drive LEDs are grouped in pairs and are in the general location of the disk drive
slot. There are 12 Drive Status and Drive Activity LEDs, one group or pair for
each disk drive.
Refer to “Drive LEDs” on page 91 for detailed information.
Audible Alarm
An audible alarm will sound when any of the enclosure’s component condition
changes to an abnormal state. To silence the alarm, press the Alarm Reset button
located on the front bezel. The corresponding alarms’ LED will remain
illuminated until the condition returns to a normal state.
Drive LEDs 19
Chapter 1 - Getting Started
20
imageRAID_160.book Page 20 Friday, November 14, 2003 4:14 PM
Audible Alarm
Chapter 2
imageRAID_160.book Page 21 Friday, November 14, 2003 4:14 PM
Theory of Controller Operation
This chapter provides a functional overview and understanding of the supported
topologies and operating modes for the imageRAID SCSI Series Storage System.
With this information, you will be able to make the best choice based on the
supported topologies, to set up your storage solution.
The IRS-JBOD is the JBOD SCSI and Clustering enclosure storage system. The
IRS-1U160xx-xx model with its single imageRAID controller supports the
Stand-Alone operating mode, and the IRS-2U160xx-xx with its dual imageRAID
controllers supports the active-active or active-passive operating modes. There
are three operating modes for these two imageRAID SCSI Series models:
Stand-Alone, Active-Active, and Active-Passive. Either mode can function in
single or dual port configurations.
Operating Modes Overview
These operating modes let you configure the enclosure to support a variety of
host environments.
� JBOD – Use this mode for single or multiple enclosures without
imageRAID Controllers (IRS-JBOD), and clustering configurations.
� Stand-Alone Single Port – Use this mode when you have the
IRS-1U160xx-xx (single imageRAID controller) and require single-HBA host
access. There will be several cabling schemes to choose from when you
setup this operating mode.
21
Chapter 2 - Theory of Controller Operation
22
imageRAID_160.book Page 22 Friday, November 14, 2003 4:14 PM
� Stand-Alone Dual Port – Use this mode when you have a IRS-1U160xx-xx
(single imageRAID controller) and require dual-HBA host access, or two
independent host access. There will be several cabling schemes to choose
from when you setup this operating mode.
� Active-Active Single Port – Use this mode when you have a
IRS-2U160xx-xx (dual imageRAID controllers) and require both controllers
to be active and processing host I/O operations. This operating mode uses
one of the host ports of each imageRAID controller and supports single or
dual host system connections. There are several cabling schemes when
setting up the single host system or dual host systems.
� Active-Passive Dual Port – Use this mode when you have IRS-2U160xx-xx
(dual imageRAID controllers) and require only one imageRAID controller
to be active. while the other controller is in a passive mode as a “hot”
standby. This operating mode supports single or dual host system with
several cabling schemes. It does not provide the performance compared to
either of the Active-Active modes.
The naming conventions are broken down into two parts: the first part refers to
the number of controllers and their state, and the second part refers to the state
of the controller’s host ports (not to be confused with the physical I/O ports).
Stand-Alone designates a single controller system, and Active-Active or
Active-Passive designates a dual controller system.
The Single Port or Dual Port component of the name convention refers to the
number of enabled Host ports on the active controller. Note that there are two
host ports on each controller (internally).
Operating Mode Number of Controllers
Number of Active Host Ports per Controller
Number of Disk Channels
Stand-Alone:Single Port(IRS-1U160xx-xx)
1 1 3
Stand-Alone:Dual Port(IRS-1U160xx-xx)
1 2 2
Active-Active:Single Port(IRS-2U160xx-xx
2 1 2
Active-Passive:Dual Port(IRS-2U160xx-xx)
2 2 (active controllers only) 2
Operating Modes Overview
Chapter 2 - Theory of Controller Operation
imageRAID_160.book Page 23 Friday, November 14, 2003 4:14 PM
Stand-Alone Mode
In Stand-Alone mode, the imageRAID controller operates autonomously. The
controller has two SCSI Host I/O connector ports. They are labeled in the
diagrams as “CH 0” and “CH 3.” In Single Port mode, the “CH 3” connector
becomes a drive channel providing one additional drive channel for expansion.
Advantages:
� Low cost entry-level RAID storage solution that is field upgradeable.
� Allows the use of dual host ports to maximize bandwidth and host IOPs.
(For example: this configuration is ideal for sequential access patterns,
where disks can supply more than 160 MB/sec of data to a host.)
� Host system has multiple paths to each array (with host driver).
� All arrays appear on both host ports at the same LUN positions in Dual Port
mode. (If both ports are connected to the same host, the host will see a
given array twice unless it does special processing to detect duplicate paths
to array. A host device driver may provide this functionality.)
� Hosts can detect redundant paths to an array by matching array serial
numbers from SCSI inquiry data.
Disadvantages:
� The controller is a single point of failure.
� Third-party software is required for upstream path fail-over.
On the following two pages are diagrams which depicts the logical function of
this operating mode.
Stand-Alone:Single Port with Single Host
T
Host I/O Connectors
Host SystemHBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
I/O Card
I/O Card
DiskChannel
Controller Disk Ports
SEP
Stand-Alone Mode 23
Chapter 2 - Theory of Controller Operation
24
imageRAID_160.book Page 24 Friday, November 14, 2003 4:14 PM
Stand-Alone:Single Port with Two Hosts
Stand-Alone:Dual Port with Single Host
T
Host I/O Connectors
Host System #!HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
I/O Card
I/O Card
DiskChannel
Controller Disk Ports
SEP
Host System #2HBA 1
T
Host I/O Connectors
Host System #1HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
Active
I/O Card
I/O Card
Controller Disk Ports
SEP
Host System #1HBA 2
Stand-Alone Mode
Chapter 2 - Theory of Controller Operation
imageRAID_160.book Page 25 Friday, November 14, 2003 4:14 PM
Stand-Alone:Dual Port with Two Hosts
Stand-Alone:Dual Port with Dual Host (Quad Cabling)
T
Host I/O Connectors
Host System #1HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
Active
I/O Card
I/O Card
Controller Disk Ports
SEP
Host System #2HBA 1
T
Host I/O Connectors
Host System #1HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
Active
I/O Card
I/O Card
Controller Disk Ports
SEP
Host System #1HBA 2
Host System #2HBA 1
Host System #2HBA 2
Stand-Alone Mode 25
Chapter 2 - Theory of Controller Operation
26
imageRAID_160.book Page 26 Friday, November 14, 2003 4:14 PM
Active-Active Mode
In the Active-Active mode, the two imageRAID Controllers cooperate to provide
redundancy. If one controller fails, the remaining controller will take over the
failed controller’s functionality. Each controller has two SCSI Host ports, they are
labeled in the diagrams as “CH 0” and “CH 3.”
In the Active-Active:Single Port mode, one Host port is normally active, and the
other is normally passive. In a failed over condition, the passive port of the
surviving controller becomes active and assumes the identity of the failed
controller. This failover process occurs without user intervention.
Arrays can only be accessed by the controller that currently owns them. One
controller will have no visibility to the others’ arrays. If one controller fails, the
surviving controller will take ownership of all arrays. Pool spares and unassigned
disks are visible to both controllers.
The two controllers communicate via the back-end disk buses. Although many
different message types are sent between the two controllers, the majority of the
data is write cache data. In the default write-back caching mode, any data that the
host writes to one controller is copied to the other controller before a good status
is returned to the host. By mirroring the data, if a controller fails, the surviving
controller will have a copy of all data that has not been written to the disk.
WARNING: The controllers communicate with each other using SCSI Initiator IDs
6 and 7 on each of the disk channels,. You should not change these
ID settings.
Each controller sends heartbeat messages to its partner controller. If a controller
does not receive a heartbeat message within a set time period, it will kill the
other controller assuming that it has malfunctioned.
Presentation of LUNs in Active-Active:Single Port Mode
Controller Status Controller 1Channel 0
Controller 1Channel 3
Controller 2Channel 0
Controller 2Channel 3
Both controllers online Controller 1 LUNs
Passive Controller 2 LUNs
Passive
Controller 1 Fails Inactive Inactive Controller 2 LUNs
Controller 1 LUNs
Controller 2 Fails Controller 1 LUNs
Controller 2 LUNs
Inactive Inactive
Active-Active Mode
Chapter 2 - Theory of Controller Operation
imageRAID_160.book Page 27 Friday, November 14, 2003 4:14 PM
After killing the other controller, it will take ownership of the arrays and will
activate its passive host port to assume the defunct controller’s identity.
The following diagrams illustrate the logical function of the controllers when both
are active and then again when one controller has failed.
Active-Active Single Port Mode Both Controllers Active
Active-Active Single Port Mode Controller 1 Failed
Host I/O Connectors
Host System #2 orHost System #1 HBA #2
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Passive
HOST I/O
HOST I/O
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
imageRAID Controller
imageRAID Controller
Host I/O Connectors
Host System #2 orHost System #1 HBA #2
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Failed
HOST I/O
HOST I/O
Failed
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0)
Active
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
imageRAID Controller
imageRAID Controller
Active-Active Mode 27
Chapter 2 - Theory of Controller Operation
28
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In the failed-over condition, the active controller will present its native identity on
one Host port, and the failed-over controller’s identity on its other Host port.
After the controller has failed-over, the user can replace the failed controller with
a new controller, and the arrays will fail-back to the new controller without
intervention. If you want to retry the failed controller, it’s necessary to release the
killed status that the survivor asserts. This is accomplished via the VT-100 —
Other Controller Menu – Unkill Other menu option.
If you replace a failed controller with a new controller, the new controller will
attempt to retrieve its configuration (see “Understanding Mirrored Operations” on
page 31) from the surviving controller. This means that the replacement
controller will boot up with the same configuration as the controller it replaced.
If the surviving controller for some reason does not contain a valid mirrored
configuration, then the user must manually configure the replacement controller.
The correct host target ID must be set, and the Active-Active operating mode
must be enabled.
The Active-Active controller system makes some assumptions about the host
operating system’s SCSI processing. Specifically, the host must retry incomplete
commands after a specific time period. This retry is necessary because a host may
issue a command to a controller, the controller fails over, and the new controller
does not have a copy of the command.
Advantages:
� LUN isolation with the single port-single host system.
� Access to all LUNs with the quad cabling configuration.
� Provides transparent fail-over and fail-back.
Disadvantages:
� Host HBA or the Host SCSI bus are single points of failure.
� In a single host configuration, the host system is also a single point of
failure.
� No upstream fail-over with a single host dual HBA configuration. Upstream
fail-over requires dual host with quad cabling and third party file share/file
lock software.
� Protected LUN sharing between two host systems is not supported without
the use of third party file share/file lock software.
Active-Active Mode
Chapter 2 - Theory of Controller Operation
imageRAID_160.book Page 29 Friday, November 14, 2003 4:14 PM
Active-Passive Mode
In the Active-Passive mode, there is one active and one passive imageRAID
Controller. The primary (active) controller operates with both of its Host ports
enabled and presents all LUNs on both ports to maximize bandwidth. The
secondary (passive) controller keeps both its Host ports passive, and does not
service any LUNs. Both controllers monitor each other’s heartbeats and the
passive controller receives write data and parity logs from the active controller.
If the active controller fails, normal fail-over occurs to the passive controller,
which becomes active by enabling both of its Host ports and takes ownership of
all arrays.
Controller 1 is the default active controller. Controller 2 is always passive unless
controller 1 fails. The default active controller is not selectable.
Because the active controller does not have to mirror the passive controllers data,
more write-back cache memory can be made available to the active controller.
This means that half the cache memory can be dedicated to writes and half to
reads. This is the same allocation used in Stand-Alone mode.
Each controller sends heartbeat messages via the SCSI buses to its partner
controller. If a controller does not receive a heartbeat message within a set time
period, it will kill the other controller assuming that it has malfunctioned. After
killing the other controller, it will take ownership of the arrays and will activate
its passive host port to assume the defunct controller’s identity.
WARNING: The controllers communicate with each other using SCSI Initiator IDs
6 and 7 on each of the disk channels,. You should not change these
ID settings.
On the following page, you will find diagrams which illustrates the Active-Passive
mode logical functions when the controllers are functioning in a normal
condition and then in a failed condition.
Controller 1Host Port 0 (FC1)
Controller 1Host Port 1 (FC2)
Controller 2Host Port 0 (FC1)
Controller 2Host Port 1 (FC2)
Controller 1LUNs
Both ControllersOnline
Controller 1Failed
Controller 2Failed
Inactive Inactive Controller 2LUNs
Inactive Inactive Controller 1LUNs
Controller 2LUNs
Controller 1LUNs
Controller 2LUNs
Inactive Inactive
Active-Passive Mode 29
Chapter 2 - Theory of Controller Operation
30
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Advantages:
� Transparent fail-over and fail-back.
� Single point of failure is the host system. (There are no single points of failure when dual host systems are configured with clustering software.)
� Upstream fail-over.
Disadvantages:
� Lower performance than the Active-Active mode.
� Upstream fail-over requires third party software.
� Careful administration is necessary, since all the arrays are reported twice to the host operating system which requires the use of third party file share/file lock software to prevent data overwrites.
Active-Passive Dual Port Controller 1 Active
Active-Passive Dual Port Controller 1 Failed
Host I/O Connectors
Host System #2 orHost System #1 HBA #2
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
HOST I/O
HOST I/O
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
Passive
imageRAID Controller
imageRAID Controller
Host I/O Connectors
Host System #2 orHost System #1 HBA #2
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
HOST I/O
HOST I/O
Failed
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Active
Failed
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
Active
imageRAID Controller
imageRAID Controller
Active-Passive Mode
Chapter 2 - Theory of Controller Operation
imageRAID_160.book Page 31 Friday, November 14, 2003 4:14 PM
Understanding Mirrored Operations
The mirroring feature causes configuration changes to be mirrored to the
opposite controller in an Active-Active configuration. The mirrored configuration
is stored in the other controller’s firmware (Flash). If a controller fails and is
replaced, then on boot up, it attempts to retrieve this configuration data from the
opposite controller. The intent is that the user will not need to reconfigure a new
controller when it is replaced.
NOTE: Dual imageRAID controller operations require that both controllers must
have the same version firmware installed.
If a replacement controller uses its mirrored configuration, you will see it print a
message during boot (saying it’s using the mirrored configuration), and then it
will reboot (rebooting is necessary for the mirrored configuration to take effect).
Here’s how the mirrored configuration works in different scenarios:
� Stand-Alone mode – The feature is not active.
� Active-Active mode where both controllers are operating normally – Each
controller uses its own local configuration.
� Active-Active mode where one controller boots and the other controller
does not boot due to some problem – The controller that boots uses its
local configuration.
� Active-Active mode where one controller is up when a new replacement
controller boots – the new controller attempts to get its mirrored
configuration from the other controller. If it is not available, it will try to
use its local configuration. If that is not available, then it will use the
default settings.
NOTE: When Clear Configuration is selected in the Flash Utility menu, both the
local Flash configuration and the other controller’s mirrored configuration
image are cleared. Also, there is an option (J) in the Flash Utility menu
that can be used to tell a booting controller to temporarily ignore the
mirrored configuration. This can be used, if for whatever reason, the
mirrored configuration should not be used by a booting controller. This is
primarily a safeguard, because a retrieved mirrored configuration is
checked extensively before it is used.
Understanding Mirrored Operations 31
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A Word about Clustering
Minimizing Downtime for Maximum Data Availability
So-called open systems, such as Windows NT servers, just don’t provide the level
of availability that IS managers are familiar with on mainframes. A partial solution
to this problem is server clustering.
Clusters consist of two or more loosely coupled systems with a shared-disk
subsystem and software that handles failover in the case of a node (host) failure.
In most cases, hardware/software failover is performed automatically and is
transparent to users, although users will experience performance degradation as
processing is shifted to another cluster node. In some cases this failover can
occur in a matter of seconds.
High availability of data and applications is by far the most compelling reason to
go with clustering technology. For example, the accepted rule is that stand-alone
UNIX systems can provide 99.5% uptime. Adding a RAID subsystem can increase
the uptime to 99.9%. The goal of clustering is 99.99% availability.
Beyond clustering, fault-tolerant systems can provide 99.9999% uptime. At the
high end, continuous-processing systems offer virtually 100% uptime.
Although the increase from 99.5% to 99.99% availability may seem insignificantly
small, it adds up in terms of minutes per year of downtime. For example,
assuming a 7x24 operation, 99.5% uptime translates into 2,628 minutes — or
more than 43 hours of downtime per year. In contrast, 99.99% uptime translates
into less than one hour (52 minutes) of downtime per year.
Availability figures relate primarily to unplanned downtime. But the advantages
of clusters in terms of planned or scheduled downtime are even more significant.
If you figure two to sixteen hours per month for a server in a large shop.
Planned downtime requires shutting down stand-alone systems entirely. Result:
100% loss of processing for the duration of the downtime. But, with cluster, you
can shut down one node and off-load the processing to other nodes in the cluster
with no interruption of processing.
A Word about Clustering
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High availability is not the only benefit of clustering. In some cases, users may
see advantages in the areas of performance, scalability, and manageability. In
reality, you can expect a 1.6x (80% efficiency) to 1.8x (90% efficiency)
performance increase as you go from one node to two nodes. Going from one
node to a four node cluster generally yields a 2.5x or 3x performance boost.
However, the cluster performance is application dependent. For example, READ
operations may yield a 1.8x performance increase going from one to two nodes,
but in a WRITE intensive application, you may only see a 1.4-1.6x improvement.
Although clusters seem to be relatively simple, they involve complex technology
that can be implemented in a variety of ways. The number of nodes supported
and type of interconnection used, and a number of other features differentiate
cluster implementations. One area of implementation is the manner in which
distributed lock manager is implemented. Some perform this at the user level and
others in the kernel, with the latter enhancing performance.
In addition to the differing features you should consider the following:
Does the cluster:
• have the ability to hot load new nodes without bringing down the
whole cluster?
• provide automatic or manual failover?
• load balance?
• use a journalized file system?
• provide a fast cluster failover?
• allow for the nodes to be geographically located?
Minimizing Downtime for Maximum Data Availability 33
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How Available are Clusters?
The following tables outlines the maximum availability per downtime in the
different architectures:
Application of Availability
The imageRAID SCSI Series Storage System implementation of availability within
its supported topologies are as follows:
Architecture Maximum Availability Downtime per Failure Downtime per Year(in minutes)
Continuous Processing
100.00% None 0
Fault-Tolerant 99.9999% Cycles 0.5 - 5
Clusters 99.9 - 99.999% Seconds to minutes
5 - 500
High Availability 99.9% Minutes 500 - 10,000 (disk mirroring)
Stand Alone System
99.5% Hours 2,600 - 10, 000 (without disk mirroring)
Architecture Corresponding Topology
Continuous Processing Not Available
Fault-Tolerant Active-Passive:Dual Port
Cluster Active-Active:Dual Port or Single Bus Clustering
High Availability Active-Active:Single Port
Stand Alone System Stand-Alone:Dual Port
How Available are Clusters?
Chapter 3
imageRAID_160.book Page 35 Friday, November 14, 2003 4:14 PM
Setup and Installation
Overview
This chapter describes the procedures to install and setup the imageRAID SCSI
Series Storage System. Each section will step you through the hardware
installation, cabling and topology configurations, and upgrades.
It is important to thoroughly review this information and perform the steps of
procedures in each applicable section, in the order in which they are presented.
This will ensure a smooth and trouble-free installation.
The installation is divided into three sections. The first section describes installing
the enclosure(s) into the rack cabinet. The second section is “Enclosure
Configuration” which describes setting the SAF-TE Disk I/O card or the SCSI
SAF-TE Cluster card switches and the enclosure-to-enclosure cabling. (These
configurations are categorized by the number of disk drives. For example, a
IRS-JBOD (single enclosure) is described as the “JBOD - 12 Drive Configuration,”
where a imageRAID IRS-1U160/IRS-2U160 with two daisy-chained IRS-JBOD
enclosures will be described as the “RAID - 36 Drive Configuration.” The third
section, “Topology Host Cabling,” describes the cabling of the primary RAID
storage enclosure to the host system(s). The topologies are based on the operating
modes: JBOD, Stand-Alone Single Port, Stand-Alone Dual Port, Active-Active
Single Port, Active-Passive Dual Port or Single Bus Clustering.
35
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Storage System Detailed Installation
This section describes preparing and installing the imageRAID SCSI Series Storage
System enclosure(s) into the rack cabinet or the enclosure into its tower stand
(“Installing the Storage System into the Tower Stand” on page 39).
After installing the hardware components, go to the Enclosure Configuration
section and set the switches on the SAF-TE Disk I/O card and omplete the
cabling for your configuration.
Installing the Storage System Enclosure into the Rack Cabinet
1 Select an appropriate location within your rack cabinet.
Consider the location of the enclosures in relationship to each other and the
host server to ensure the cables will easily reach between them.
CAUTION: The power supplies should be removed prior to installing the
enclosure into the rack cabinet. The enclosure chassis could be
damaged during installation due to the added unbalaced weight of
the power supplies.
NOTE: Make sure the selected location in the rack cabinet has adequate air
flow for the front to side and side to side areas.
2 Remove the storage system from its shipping carton and inspect for obvious
damage.
Remove and open the accessory kit, and remove the contents. Open the left
and right flaps, and remove the bezel and mounting rails.
Remove the drives from the foam tray, then remove the foam tray from the
box.
Lift the enclosure from the box. Remove the foam from around the it and
place the enclosure on a flat surface to work from.
3 Remove the power supplies.
Grasp the power supply handle and slide the release latch to the right with
your thumb as you pull the power supply from the enclosure. Repeat for the
other power supply.
Storage System Detailed Installation
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4 Locate the mounting rails and mounting hardware in the accessory kit (some
installations require cage nuts and others use standard nuts).
NOTE: It will be helpful to have an assistant available during the installation.
5 Install the rear mounting rails.
Secure the left and right mounting rail to the vertical members using the
screws and nuts provided.
Attaching the Rails
6 Lift the enclosure into the rack cabinet and align the rear mounting rails with
the slots at the rear of the enclosure sliding the enclosure onto the rails.
7 Secure each front mounting ear to the vertical member using the supplied
screws and nuts.
NOTE: Ensure the enclosure is level.
Rear Rack Vertical Member
Nut
Nut
MountingScrews
Rail Slot
Rail Slot
CTRL 1
CTRL 2
SAFTE
P-1
Tx
Rx
P-2
Tx
Rx
P-1
Tx
Rx
P-2
Tx
Rx
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 1
Channel 2
Channel 0
Channel 3
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Controller 2Controller 1
Installing the Storage System Enclosure into the Rack Cabinet 37
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Attaching the Chassis Ears
8 Re-install the power supplies.
Slide each power supply into its empty bay and ensure it seats completely,
and that the release latch resets.
9 Continue now with “Completing the Installation” on page 41.
Front Rack VerticalMember
MountingScrew
Chassis Ear
Nut
Nut
MountingScrew
Installing the Storage System Enclosure into the Rack Cabinet
Chapter 3 - Setup and Installation
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Installing the Storage System into the Tower Stand
1 Remove the storage system from its shipping carton and inspect for obvious
damage.
Remove and open the accessory kit, and remove the contents. Open the left
and right flaps, and remove the bezel and mounting rails.
Remove the drives from the foam tray, then remove the foam tray from the
box.
Lift the enclosure from the box. Remove the foam from around the it and
place the enclosure on a flat surface to work from.
2 Remove the power supplies.
Grasp the power supply handle and slide the release latch to the right with
your thumb as you pull the power supply from the enclosure. Repeat for the
other power supply.
3 Remove the cooling fan module.
Place your finger in the handle and slide the release latch to the right with
your thumb while pulling it from the enclosure.
4 Remove the tower stand case from its shipping carton and inspect for
obvious damage.
5 Locate the accessory kit in the tower shipping carton. It should contain eight
10-32 pan head screws and conversion instructions. (The Conversion
Instruction enclosed in the box are applicable to converting an existing rack
mount installation to a deskside tower system.)
6 Rotate the enclosure chassis so that the power supply bays are on the top.
7 Carefully slide the enclosure chassis into the tower stand until it fits flush as
indicated by (A) in the illustration on the following page.
8 Secure the top and bottom front mounting ears to the tower stand using two
each 10-32 pan head screws as indicated by (B) in the illustration on the
following page.
9 Install the rear mounting rails into the slots at the rear of the chassis as
indicated by (C) in the illustration on the following page.
Installing the Storage System into the Tower Stand 39
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10 Secure the top and bottom slide rails using the remaining two sets (4) of
10-32 pan head screws.
Inserting and Securing the Chassis
MountingScrews
MountingScrews
MountingScrew
AB
C
Installing the Storage System into the Tower Stand
Chapter 3 - Setup and Installation
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11 Re-install the cooling fan module. Slide it into its open bay and ensure it
seats completely, and the release latch resets.
12 Re-install the power supplies. Slide each power supply into its open bay and
ensure it seats completely, and the release latch resets.
13 Continue now with “Completing the Installation” on page 41.
Completing the Installation
1 Install the disk drives.
a Remove each drive from its anti-static protective packaging. Inspect for
obvious damage.
b Install each disk drive into a drive slot by aligning the drive carrier rails
with the grooves in the drive bay wall.
The drive carrier tension clips to ensure that it fits snug, so it requires
some force to seat the drive. Repeat this step to populate all the required
drive slots.
Installing Disk Drives
c Install the front bezel. The bezel mounts to the two front post stud, one
on each mounting ear, and the bezel lip fits under the chassis top.
Completing the Installation 41
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42
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d Secure the front bezel using a Phillips screwdriver by rotating the
fasteners clockwise one-quarter turn.
Attaching the Front Bezel (Rack and Tower Models)
CAUTION: Verify that the power supply On/Off switches are in their OFF
position.
2 (AC Power Supplies Only) Install the power cords and secure them using the
power cord bales.
NOTE: For DC Power Supplies, skip to “Cabling the DC Power Supplies” on
page 43.
a Ensure that the orientation is such that when the power cord is inserted,
the bale will be on top of the cord and will fit over and onto the cord.
Reset Alarm
RES
ET A
LAR
M
Completing the Installation
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Attaching the Power Cord Bales
b Connect the other end of the power cord into a three-hole grounded
outlet or UPS power system. A UPS is highly recommended.
c Repeat steps 2(a) and 2(b) for the other power cord.
NOTE: For DC Power Supply Systems refer to Cabling the DC Power
Supplies below.
3 Repeat the above steps for each additional storage system enclosure you will
be installing.
This completes the physical hardware installation.
Cabling the DC Power Supplies
NOTE: Refer to “DC Power Supply Connector Pinout” on page 90 for wiring and
connector details.
If you are using the DC Power Supply system, refer to the following procedures
to properly connect the cables.
1 Plug the connector into the power supply, it is keyed to install only one way.
2 Connect the two Red pair wires to the DC Feed +48VDC connection.
3 Connect the two Green/Yellow pair wires to the DC Feed ground
connection.
4 Connect the two Black pair wires to the DC Feed -48VDC connection.
Bale fits over and onto the power cord.
Cabling the DC Power Supplies 43
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Attaching the DC Cable
5 Repeat the above steps (1 - 4) for the second power supply, if this option
was ordered.
This completes the physical hardware installation.
Red (2x)
Red (2x)Top two pair
Black (2x)
Black (2x)Middle two pair
Green/Yellow (2x)
Green/Yellow (2x)Bottom two pair
Cabling the DC Power Supplies
Chapter 3 - Setup and Installation
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Before You Continue...
The next section, Enclosure Configuration, includes steps and diagrams for
setting the SAF-TE Disk I/O card/SCSI SAF-TE Cluster card switches and attaching
the required SCSI data cables for each drive configuration. Locate the applicable
configuration and refer to the steps and diagrams to set the card switches and
cable your system.
The Topology Host Cabling section includes steps and diagrams for cabling the
primary RAID storage enclosure to the host computer(s). Review the procedure
steps, then locate the applicable topology and cable your system based on the
diagrams.
NOTE: In some circumstances, if the host system does not see the imageRAID
Controllers, remove the Host SCSI I/O card and install the jumpers JP1 and
JP2 on both pins to disable termination. This should resolve the problem.
The last section of this chapter provides the steps to properly power on or power
off your storage system.
Special Note for Microsoft Windows 2000/2003 Installations
At startup you will see the “Found New Hardware Wizard” appear. Although a
driver is not required for the storage system, a driver .inf file is provided on the
Software/Documentation Disc which is installed to satisfy this requirement.
Refer to the ReadMe file located in the Drivers directory on the Software/
Documentation Disc for instructions, then follow the on screen wizard to
complete the driver installation.
Before You Continue... 45
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Enclosure Configuration
In this section, configurations are determined by the enclosure model type
(IRS-JBOD or imageRAID IRS-1U160/IRS-2U160), SCSI bus configuration, number
of enclosures and the available number of drives. Follow the steps of procedure for
your configuration to set the switches, jumpers, and connect the SCSI data cables.
imageRAID IRS-JBOD - 12 Drive Configuration
The IRS-JBOD can be setup as a Single-Bus or a Dual-Bus JBOD (Just a Bunch of
Drives) configuration using a single enclosure which provides up to a 12 disk
drive storage solution.
Logical View of Drive Connectivity - Single-Bus Mode
In Single-Bus Mode, Channel 1 on the SAF-TE Disk I/O card assesses all the
drives 1 through 12. In this mode, a “Single-Bus Module” must be installed in the
Controller 1 slot. This Single-Bus Module connects Channel 1 and Channel 2
creating a single continuous SCSI bus.
Logical View of Drive Connectivity - Dual-Bus Mode
Connectors
Single BusModule
SEP
T= Location of internal termination
(autosense allows the physical connection
to disable termination)
T
T
T
T
SCSI SAF-TE Clustering Card/SAF-TE Disk I/O Card
Drives 7 - 12
Drives 1 - 6
CH 1CH 2
HostHost
SEP
SBE
SBE
Drive I/O Connectors
SEP
T= Location of internal termination
(autosense allows the physical connection
to disable termination)
T
T
SAF-TE Disk I/O
Drives 7 - 12
Drives 1 - 6
CH 1CH 2
SEP
T
T
Enclosure Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 47 Friday, November 14, 2003 4:14 PM
In Dual-Bus Mode, the Channel 1 connector on the SAF-TE Disk I/O card
provides access to drives 1 through 6 and the Channel 2 connector provides
access to drives 7 through 12.
NOTE: In the preceding logical view diagrams, the drive slots are used to
indicate which drives are connected to which channel. They should not
be confused with the disk drive SCSI IDs. Those IDs are pre-determined
by the SCSI Disk I/O card switch settings.
1 Remove the SAF-TE Disk I/O card installed in the enclosure. Loosen the two
thumb screws and pull the card from its slot location.
2 Locate the switches on the card and set them as described in the switch
setting diagrams.
Some configurations have multiple switch setting options available, choose
the setting that is appropriate for your system.
SAF-TE Disk I/O Card Switch and Jumper Locations
There is one switch setting for Single-Bus mode and two possible settings for
Dual-Bus mode. Refer to the switch setting appropriate for your
configuration and set the switches accordingly. (Refer to the illustrations on
the following page.)
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
imageRAID IRS-JBOD - 12 Drive Configuration 47
Chapter 3 - Setup and Installation
48
imageRAID_160.book Page 48 Friday, November 14, 2003 4:14 PM
Single-Bus JBOD Switch Setting
Dual-Bus JBOD Switch Setting - Option 1
Dual-Bus JBOD Switch Setting - Option 2
3 Re-install the SAF-TE Disk I/O card. Slide the card into the slot and ensure
that it seats completely. Secure the card by tighten the two thumb screws.
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ingsID 1
Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
ID 9 ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 6 ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15
Sing le -Bus Mode
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 1Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 6
ID 1 ID 2
ID 3 ID 4
ID 5 ID 6UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15 /15Host HBA ( ID 0 o r 7 ) Dua l -Bus Mode
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 9Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 13 ID 14
ID 9 ID 10
ID 11 ID 12
ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15 /15Host HBA ( ID 0 o r 7 ) Dua l -Bus Mode
imageRAID IRS-JBOD - 12 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 49 Friday, November 14, 2003 4:14 PM
4 (Single-Bus Mode Installations Only) Install the Single-Bus Module in the
Controller 1 slot.
a Remove the Controller Cover plate. Loosen the four thumb screws and
pull the cover plate from the enclosure.
Single-Bus Module Installation
b Slide the Single-Bus Module in the Controller 1 (lower) slot, and secure it
by pressing the latches into place.
c Re-install the Controller Cover plate. Tighten the four thumb screws, do
not overtighten.
5 Connect the SCSI data cable(s) from the host system HBAs to the SAF-TE
Disk I/O card Channel connector(s). Refer to the diagrams on the following
page for cabling details for each mode.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Cover Plate
Single-BusModule
imageRAID IRS-JBOD - 12 Drive Configuration 49
Chapter 3 - Setup and Installation
50
imageRAID_160.book Page 50 Friday, November 14, 2003 4:14 PM
Cabling Diagrams JBOD Single Enclosure - Single-Bus Mode
Cabling Diagrams JBOD Single Enclosure - Dual-Bus Mode
This completes the imageRAID IRS-JBOD - 12 Drive Configuration setup, refer to
“Powering On the Storage System” on page 80. Follow your operating system
requirements for preparing new disk drives.
SCSI Data Cable
Ethernet Cables Ethernet Cables
Switches
SCSI Data Cable
SAFTE Disk I/O
Host Computer
imageRAID IRS-JBOD
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Single BusModule
PowerSupply
PowerSupply
CoolingFans
Host Computer
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Host Computer
imageRAID IRS-JBODDual-Bus Mode
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
PowerSupply
PowerSupply
CoolingFans
imageRAID IRS-JBOD - 12 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 51 Friday, November 14, 2003 4:14 PM
imageRAID IRS-JBOD - 24 Drive Configuration
The imageRAID IRS-JBOD can also be setup as a Single-Bus JBOD (Just a Bunch
of Drives) configuration with two enclosure which will provide up to a 24 disk
drive (12 per channel) storage solution. In this configuration you can have a
single host system with a single HBA that has dual independent ports or a single
host system with two single port HBAs.
In this configuration both enclosures will be in single-bus mode. Channel 1 on
the SAF-TE Disk I/O card will assess all of the drives 1 through 12. A Single-Bus
Module must be installed in the Controller 1 slot. This Single-Bus Module
connects Channel 1 and Channel 2 together to create a single continuous SCSI
bus.
Logical View of Connectivity - Single-Bus Mode
NOTE: In the preceding logical diagram, the drive slots are used to indicate
which drives are connected to which channel. They should not be
confused with the disk drive SCSI IDs. Those IDs are pre-determined by
the SCSI Disk I/O card switch settings.
1 Remove the SAF-TE Disk I/O card installed in both enclosures. Loosen the
two thumb screws and pull the card from its slot location.
2 Locate the switches on each card and set them as described in the switch
setting diagram.
Connectors
Single BusModule
SEP
T= Location of internal termination
(autosense allows the physical connection
to disable termination)
T
T
T
T
SCSI SAF-TE Clustering Card/SAF-TE Disk I/O Card
Drives 7 - 12
Drives 1 - 6
CH 1CH 2
HostHost
SEP
SBE
SBE
imageRAID IRS-JBOD - 24 Drive Configuration 51
Chapter 3 - Setup and Installation
52
imageRAID_160.book Page 52 Friday, November 14, 2003 4:14 PM
SAF-TE Disk I/O Card Switch and Jumper Locations
There is one switch setting for both enclosures.
Single-Bus JBOD Switch Setting
3 Re-install the SAF-TE Disk I/O card in each enclosure. Slide the card into the
slot and ensure that it seats completely. Secure the card by tighten the two
thumb screws.
4 Install the Single-Bus Module in the Controller 1 slot in both enclosures.
a Remove the Controller Cover plate. Loosen the four thumb screws and
pull the cover plate from the enclosure.
b Slide the Single-Bus Module in the Controller 1 (lower) slot, and secure it
by pressing the latches into place.
c Re-install the Controller Cover plate. Tighten the four thumb screws, do
not overtighten. Repeat for the second enclosure.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ingsID 1
Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
ID 9 ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 6 ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15
Sing le -Bus Mode
imageRAID IRS-JBOD - 24 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 53 Friday, November 14, 2003 4:14 PM
NOTE: Refer to the illustration “Single-Bus Module Installation” on page 49.
5 Connect a SCSI data cable from the host system HBA(s) to the SAF-TE Disk
I/O card Channel 1 connectors on each enclosure.
Cabling Diagram JBOD Dual Enclosures
This completes the imageRAID IRS-JBOD - 24 Drive Configuration setup, refer to
“Powering On the Storage System” on page 80. Follow your operating system
requirements for preparing new disk drives.
SAFTE Disk I/O
imageRAID IRS-JBODSingle-Bus Mode
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Single BusModule
PowerSupply
PowerSupply
CoolingFans
SAFTE Disk I/O
imageRAID IRS-JBODSingle-Bus Mode
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Single BusModule
PowerSupply
PowerSupply
CoolingFans
SCSI Data Cable
SCSI Data Cable
Host Computer
imageRAID IRS-JBOD - 24 Drive Configuration 53
Chapter 3 - Setup and Installation
54
imageRAID_160.book Page 54 Friday, November 14, 2003 4:14 PM
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration
The imageRAID Storage System can be setup to provide up to a 12 disk drive
storage solution using the primary RAID enclosure only.
1 Remove the SAF-TE Disk I/O card installed in the enclosure. Loosen the two
thumb screws and pull the card from its slot location.
SAF-TE Disk I/O Card Switch and Jumper Locations
2 Locate the switches on the card and set them as described in the following
switch setting diagrams.
There are two possible switch settings for this configuration.
Switch Setting - Option 1
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 1Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 0
ID 1 ID 2
ID 3 ID 4
ID 5 ID 0UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 8 /8RAID Cont ro l le rs = 6 & 7 Dua l -Bus Mode
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 55 Friday, November 14, 2003 4:14 PM
Switch Setting - Option 2
The switch settings will assign specific SCSI IDs to the drive slots as
indicated, and reserve IDs 6 and 7 for the RAID Controller(s), and IDs 8 or 15
for the SAF-TE processors.
3 Re-install the SAF-TE Disk I/O card. Slide the card into the slot and ensure
that it seats completely. Secure the card by tighten the two thumb screws.
4 Connect a SCSI data cable(s) from the host system(s) HBA(s) to the Host I/O
card as indicated in “Topology Host Cabling” on page 63.
This completes the imageRAID IRS-1U160/IRS-2U160 -12 Drive Configuration
setup, refer to “Topology Host Cabling” on page 63 and “Powering On the
Storage System” on page 80. Also, refer to the AdminiStor software guide or the
VT-100 software guide for instructions on setting up and configuring the disk
arrays.
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 9Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 13 ID 14
ID 9 ID 10
ID 11 ID 12
ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15 /15RAID Cont ro l le rs = 6 & 7
Dua l -Bus Mode
imageRAID IRS-1U160/IRS-2U160 - 12 Drive Configuration 55
Chapter 3 - Setup and Installation
56
imageRAID_160.book Page 56 Friday, November 14, 2003 4:14 PM
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
The imageRAID Storage System can be setup to provide up to a 24 disk drive
storage solution (12 per channel).
1 Remove the SAF-TE Disk I/O card installed in the primary RAID enclosure.
Loosen the two thumb screws and pull the card from its slot location.
SAF-TE Disk I/O Card Switch and Jumper Locations
2 Locate the switches on the card and set them as described in the following
switch setting diagram.
The switch settings will assign specific SCSI IDs to the drive slots as
indicated, and reserve IDs 6 and 7 for the RAID Controller(s), and IDs 8 or 15
for the SAF-TE processors.
Switch Setting - Primary RAID Enclosure (IRS-1U160xx-xx/IRS-2U160xx-xx)
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 1Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 0
ID 1 ID 2
ID 3 ID 4
ID 5 ID 0UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 8 /8RAID Cont ro l le rs = 6 & 7 Dua l -Bus Mode
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 57 Friday, November 14, 2003 4:14 PM
3 Re-install the SAF-TE Disk I/O card into the primary RAID enclosure. Slide
the card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
4 Remove the SAF-TE Disk I/O card installed in the daisy-chain enclosure
(imageRAID IRS-JBOD). Loosen the two thumb screws and pull the card
from its slot location.
The daisy-chain enclosure will be configured to dual-bus mode. This
provides the drive channel expansion from the primary enclosures’ Disk I/O
channels. Set the switches as described in the following diagram.
Switch Setting - Dual-Bus Daisy-Chain Enclosure (IRS-JBOD)
5 (Daisy-chain enclosure - IRS-JBOD Only) Change the jumper settings on the
SAF-TE Disk I/O card JP7 and JP8 as described.
Locate and configure the two jumpers (JP7 and JP8), refer to the illustration
on the previous page. Add a jumper (installed on both pins) to JP8 for
Channel 1 and JP7 for Channel 2.
This will ensure that the automatic termination feature functions properly.
6 Re-install the SAF-TE Disk I/O card into the daisy-chain enclosure. Slide the
card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
7 Connect the SCSI data cables from the imageRAID IRS-1U160/IRS-2U160
enclosure to the imageRAID IRS-JBOD enclosures’ SAF-TE Disk I/O card as
indicated in the following cabling diagram.
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 9Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 13 ID 14
ID 9 ID 10
ID 11 ID 12
ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15 /15RAID Cont ro l le rs = 6 & 7
Dua l -Bus Mode
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration 57
Chapter 3 - Setup and Installation
58
imageRAID_160.book Page 58 Friday, November 14, 2003 4:14 PM
Enclosure Cabling Diagram
8 Connect a SCSI data cable(s) from the host system(s) HBA(s) to the Host I/O
card as indicated in “Topology Host Cabling” on page 63.
This completes the imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
setup, refer to “Topology Host Cabling” on page 63 and “Powering On the
Storage System” on page 80. Also refer to the AdminiStor software guide or the
VT-100 software guide for instructions on setting up and configuring the disk
arrays.
SAFTE Disk I/O
SCSI Data Cable SCSI Data Cable
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
PowerSupply
PowerSupply
CoolingFans
SAFTE Disk I/O
imageRAID IRS-JBOD
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
PowerSupply
PowerSupply
CoolingFans
Host I/O
imageRAID IRS-1U160/IRS-2U160 - 24 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 59 Friday, November 14, 2003 4:14 PM
imageRAID IRS-1U160 - 36 Drive Configuration
Only the imageRAID IRS-1U160 model Storage System can be setup in this
Stand-Alone Single Port mode configuration. It provides up to a 36 disk drive
storage solution (12 per channel). This is due to one of the Host SCSI I/O ports
(CH 3) is used as a drive channel to provide the additional connectivity for the
second imageRAID IRS-JBOD enclosure.
1 Remove the SAF-TE Disk I/O card installed in the primary RAID enclosure.
Loosen the two thumb screws and pull the card from its slot location.
SAF-TE Disk I/O Card Switch and Jumper Locations
2 Locate the switches on the card and set them as described in the following
switch setting diagram.
The switch settings will assign specific SCSI IDs to the drive slots as
indicated, and reserve IDs 6 and 7 for the RAID Controller(s), and IDs 8 or 15
for the SAF-TE processors.
Switch Setting - Primary RAID Enclosure (IRS-1U160xx-xx)
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 1Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 0
ID 1 ID 2
ID 3 ID 4
ID 5 ID 0UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 8 /8RAID Cont ro l le rs = 6 & 7 Dua l -Bus Mode
imageRAID IRS-1U160 - 36 Drive Configuration 59
Chapter 3 - Setup and Installation
60
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3 Re-install the SAF-TE Disk I/O card in the primary RAID enclosure. Slide the
card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
4 Remove the SAF-TE Disk I/O card installed in the first daisy-chain enclosure
(imageRAID IRS-JBOD). Loosen the two thumb screws and pull the card
from its slot location.
The first daisy-chain enclosure will be configured to dual-bus mode. This
provides the drive channel expansion from the primary enclosures’ Disk I/O
channels. Set the switches as described in the following diagram.
Switch Setting - Dual-Bus Daisy-Chain Enclosure (IRS-JBOD)
5 Configure the jumper settings on this first daisy-chain enclosure SAF-TE Disk
I/O card.
Locate and add (installed on both pins) the two jumpers at JP7 and JP8, refer
to the illustration on the previous page. The default position of the jumpers
are offset (installed on one pin only).
This will ensure that the automatic termination feature functions properly.
6 Re-install the SAF-TE Disk I/O card into the first daisy-chain enclosure. Slide
the card into the slot and ensure that it seats completely. Secure the card by
tighten the two thumb screws.
7 Remove the SAF-TE Disk I/O card installed in the second daisy-chain
enclosure (imageRAID IRS-JBOD). Loosen the two thumb screws and pull
the card from its slot location.
8 Locate the switches on the card and set them as described in the following
switch setting diagram.
9 Configure the jumper settings on this second daisy-chain enclosure SAF-TE
Disk I/O card.
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings ID 9Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 13 ID 14
ID 9 ID 10
ID 11 ID 12
ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15 /15RAID Cont ro l le rs = 6 & 7
Dua l -Bus Mode
imageRAID IRS-1U160 - 36 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 61 Friday, November 14, 2003 4:14 PM
Switch Setting - Single-Bus Daisy-Chain Enclosure (IRS-JBOD)
Locate and add (installed on both pins) the two jumpers at JP7 and JP8. The
default position of the jumpers are offset.
10 Re-install the SAF-TE Disk I/O card into the second daisy-chain enclosure.
Slide the card into the slot and ensure that it seats completely. Secure the
card by tighten the two thumb screws.
11 Connect the SCSI data cables from the imageRAID IRS-1U160 to the
imageRAID IRS-JBOD enclosures as indicated in the following cabling
diagram.
Enclosure Cabling Diagram
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ings
UP (1)
DOWN (0)
SAF-TE ID = 15RAID Cont ro l le rs = 6 & 7
ID 1Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
ID 9 ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 0 ID 13 ID 14
Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
S ing le -Bus Mode
SAFTE Disk I/O
SCSI Data Cable SCSI Data Cable
SCSI Data Cable
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
PowerSupply
PowerSupply
CoolingFans
SAFTE Disk I/O
imageRAID IRS-JBOD
SAFTE Disk I/OChl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
PowerSupply
PowerSupply
CoolingFans
imageRAID IRS-JBOD
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
Host I/O
RAID Controller
Single Bus
Module
PowerSupply
PowerSupply
CoolingFans
Host I/O
imageRAID IRS-1U160 - 36 Drive Configuration 61
Chapter 3 - Setup and Installation
62
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12 Connect a SCSI data cable(s) from the host system(s) HBA(s) to the Host SCSI
I/O card as indicated in “Topology Host Cabling” on page 63.
This completes the imageRAID IRS-1U160 - 36 Drive Configuration setup, refer to
“Topology Host Cabling” on page 63 and “Powering On the Storage System” on
page 80. Also, refer to the AdminiStor software guide or the VT-100 software
guide for instructions on setting up and configuring the disk arrays.
imageRAID IRS-1U160 - 36 Drive Configuration
Chapter 3 - Setup and Installation
imageRAID_160.book Page 63 Friday, November 14, 2003 4:14 PM
Topology Host Cabling
This section provides instructions for the physical cabling between the primary
imageRAID enclosure and your host system(s). The topologies are determined by
the number of imageRAID Controllers installed and the operating modes of the
imageRAID Controllers. Refer to “Theory of Controller Operation” on page 21 for
detailed information describing each operating mode.
NOTE: In some circumstances, if the host system does not see the imageRAID
Controllers, remove the Host SCSI I/O card and install the jumpers JP1 and
JP2 on both pins to disable termination. This should resolve the problem.
Basic Connection Instructions
1 Install your host bus adapter(s) into the host system(s). Refer to your HBA
user’s guide and any applicable nStor Attach Kit for specific details.
2 For multiple LUN support, ensure that your host operating system is properly
configured to support this feature. Refer to your host operating system user’s
guide for information on how to perform this procedure.
3 Connect the SCSI data cables. Refer to the topology described for your
solution on the following pages, and cable your system based on the
diagrams shown.
a Connect the required SCSI data cable(s) to the host system’s SCSI host
bus adapter port connector(s).
b Connect the other end of those SCSI data cable(s) to the storage
enclosure Host Channel ports on the Host SCSI I/O card(s) as indicated.
4 Continue now with “Powering On the Storage System” on page 80.
5 After powering up all the system(s), you may need to set the operating mode.
By default the imageRAID Controller’s operating mode are set to
“Active-Active Single Port.” Access the AdminiStor software or VT-100
on-board software and make the necessary changes to the operating mode.
The selections will be:
• Stand-Alone Single Port
• Stand-Alone Dual Port
• Active-Active Single Port
• Active-Passive Dual Port
6 Using either AdminiStor or VT-100, configure the disk arrays as desired.
Topology Host Cabling 63
Chapter 3 - Setup and Installation
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Stand-Alone Single Port:Host Cabling
This topology is chosen when the desired application requires a low cost entry
level, fault-tolerant disk storage solution. This solution provides a single controller
configuration that supports a single or dual host(s), and up to three disk channels.
Setup for a Single Host (One HBA)
Connect the SCSI data cables as described in the following diagrams.
Stand-Alone Single Port Logical Diagram
Host Cabling Diagram - Single Host with a Single HBA
T
Host I/O Connectors
Host SystemHBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
I/O Card
I/O Card
DiskChannel
Controller Disk Ports
SEP
SCSI Data Cable
SAFTE Disk I/O
Host Computer
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
PowerSupply
PowerSupply
CoolingFans
I/O
Stand-Alone Single Port:Host Cabling
Chapter 3 - Setup and Installation
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Setup for a Dual Hosts (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Stand-Alone Single Port Logical Diagram
Host Cabling Diagram - Dual Host (Single HBAs)
T
Host I/O Connectors
Host System #!HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
I/O Card
I/O Card
DiskChannel
Controller Disk Ports
SEP
Host System #2HBA 1
SCSI Data CableSCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
PowerSupply
PowerSupply
CoolingFans
I/O
Stand-Alone Single Port:Host Cabling 65
Chapter 3 - Setup and Installation
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Stand-Alone Dual Port:Host Cabling
This topology is chosen when the desired application requires a low cost
high-performance, fault-tolerant disk storage solution with multiple paths to
storage. This solution provides a single controller configuration that supports
multiple or dual ported access to one or more host system computers.
Setup for a Single Host (Two HBAs)
Connect the SCSI data cables as described in the following diagrams.
Stand-Alone Dual Port Logical Diagram
Host Cabling Diagram - Single Host (Two HBAs)
T
Host I/O Connectors
Host System #1HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
Active
I/O Card
I/O Card
Controller Disk Ports
SEP
Host System #1HBA 2
SCSI Data CableSCSI Data Cable
SAFTE Disk I/O
Host Computer #1
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
PowerSupply
PowerSupply
CoolingFans
I/O
Stand-Alone Dual Port:Host Cabling
Chapter 3 - Setup and Installation
imageRAID_160.book Page 67 Friday, November 14, 2003 4:14 PM
Setup for a Dual Hosts (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Stand-Alone Dual Port Logical Diagram
Host Cabling Diagram - Dual Host (Single HBAs)
T
Host I/O Connectors
Host System #1HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
Active
I/O Card
I/O Card
Controller Disk Ports
SEP
Host System #2HBA 1
SCSI Data CableSCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
PowerSupply
PowerSupply
CoolingFans
I/O
Stand-Alone Dual Port:Host Cabling 67
Chapter 3 - Setup and Installation
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Setup for a Dual Host - Quad Cabling (Two HBAs) - Shared SCSI Bus
Connect the SCSI data cables as described in the following diagrams.
Stand-Alone Dual Port Logical Diagram
Host Cabling Diagram - Dual Host - Quad Cabling (Two HBAs)
T
Host I/O Connectors
Host System #1HBA 1
Drive I/O ConnectorsController Host Ports
imageRAID Controller
T SEP
T
T= Location of internal termination
T
T
T
T
T
Controller 1SAF-TE Disk I/O
DiskCH1
Drives 7 - 12
Drives 1 - 6
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Active
Active
I/O Card
I/O Card
Controller Disk Ports
SEP
Host System #1HBA 2
Host System #2HBA 1
Host System #2HBA 2
SCSI Data CableSCSI Data Cable
SCSI Data Cable SCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-1U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
PowerSupply
PowerSupply
CoolingFans
I/O
Stand-Alone Dual Port:Host Cabling
Chapter 3 - Setup and Installation
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Active-Active Single Port:Host Cabling
This topology is chosen when the desired application requires a high-performance
robust full system level fault-tolerant disk storage solution and transparent
controller failover/failback. This dual controller configuration supports a host
with a single port HBA and is ideal when the host driver software will not
support LUNs that appear twice.
Setup for Single Host (One HBA)
Connect the SCSI data cables as described in the following diagrams.
Active-Active Single Port Logical Diagram
Host Cabling Diagram - Single Host (One HBA)
Host I/O Connectors
Jum
per C
able
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Passive
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
SCSI Data Cable
SCSI Jumper Cable
SAFTE Disk I/O
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
RAID ControllerPowerSupply
PowerSupply
CoolingFans
I/O
Host Computer
Active-Active Single Port:Host Cabling 69
Chapter 3 - Setup and Installation
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Setup for Single Host (Two HBAs)
Connect the SCSI data cables as described in the following diagrams.
Active-Active Single Port Logical Diagram
Host Cabling Diagram - Single Host (Two HBAs)
Host I/O Connectors
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Passive
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
Host System #1 HBA #2
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
Host Computer
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O RAID Controller
RAID Controller
PowerSupply
PowerSupply
CoolingFans
I/O
Active-Active Single Port:Host Cabling
Chapter 3 - Setup and Installation
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Setup for Dual Host (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Active-Active Single Port Logical Diagram
Host Cabling Diagram - Dual Host (Single HBAs)
Host I/O Connectors
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Passive
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
Host System #2 HBA #1
SCSI Data CableSCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
RAID ControllerPowerSupply
PowerSupply
CoolingFans
I/O
Active-Active Single Port:Host Cabling 71
Chapter 3 - Setup and Installation
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Setup for Dual Host -Dual HBAs (Quad Cabling)
This setup will provide an isolated SCSI bus. Connect the SCSI data cables as
described in the following diagrams.
Active-Active Single Port Logical Diagram
Host Cabling Diagram - Dual Host - Dual HBAs
Host I/O Connectors
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Passive
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
Host System #2 HBA #1
Host System #2 HBA #2
Host System #1 HBA #2
SCSI Data CableSCSI Data Cable
SCSI Data Cable SCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
RAID ControllerPowerSupply
PowerSupply
CoolingFans
I/O
Active-Active Single Port:Host Cabling
Chapter 3 - Setup and Installation
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Setup for Dual Host -Dual HBAs (Quad Cabling)
This setup is ideal for clustering configurations. Connect the SCSI data cables as
described in the following diagrams.
Active-Active Single Port Logical Diagram
Host Cabling Diagram - Dual Host - Dual HBAs
Host I/O Connectors
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
Passive
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
Host System #2 HBA #1
Host System #2 HBA #2
Host System #1 HBA #2
SCSI Data Cable
SCSI Data Cable
SCSI Data Cable
HBA 1HBA 2 HBA 1HBA 2
SCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
RAID ControllerPowerSupply
PowerSupply
CoolingFans
I/O
Active-Active Single Port:Host Cabling 73
Chapter 3 - Setup and Installation
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Active-Passive Dual Port:Host Cabling
This topology is chosen when the desired application requires a high-performance
robust full system level fault-tolerant disk storage solution. This dual controller
configuration supports multiple hosts and failover and failback operations. All
LUNs are available to all hosts.
Setup for Single Host (Two HBAs)
Connect the SCSI data cables as described in the following diagrams.
Active-Passive Dual Port Logical Diagram
Host Cabling Diagram - Single Host (Two HBAs)
Host I/O Connectors
Host System #1 HBA #2
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
Passive
SCSI Data Cable
SCSI Data Cable
SAFTE Disk I/O
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
RAID ControllerPowerSupply
PowerSupply
CoolingFans
I/O
Host Computer
Active-Passive Dual Port:Host Cabling
Chapter 3 - Setup and Installation
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Setup for Dual Host (Single HBAs)
Connect the SCSI data cables as described in the following diagrams.
Active-Passive Dual Port Logical Diagram
Host Cabling Diagram - Dual Host (Single HBAs)
Host I/O Connectors
Host System #2 HBA #1
Host System #1 HBA #1
Drive I/O Connectors
Controller Host Ports
SEP
T= Location of internal termination
Controller 1SAF-TE Disk I/O
DiskCH1
DiskCH2
(CH3)
(CH0)CH 0
CH 3
CH
1C
H 2
CH 0
CH 3
I/O Card
I/O Card
Active
Controller 2
DiskCH1
DiskCH2
(CH3)
(CH0) Passive
Active
SEP
T
T
T
T
T
T
T
T
Drives 7 - 12
Drives 1 - 6
Controller Disk Ports
RAID Controller
RAID Controller
Passive
SCSI Data CableSCSI Data Cable
SAFTE Disk I/O
Host Computer #1 Host Computer #2
imageRAID IRS-2U160
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Chl 0 Chl 3
Chl 0 Chl 3
I/O
RAID Controller
RAID ControllerPowerSupply
PowerSupply
CoolingFans
I/O
Active-Passive Dual Port:Host Cabling 75
Chapter 3 - Setup and Installation
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Single Bus Clustering Configuration
The enclosure is setup as a Single-Bus configuration using a single enclosure
which provides up to a 12 disk drive storage solution in a clustered environment.
Logical View of Drive Connectivity - Single-Bus Mode
In Single-Bus Mode access to the drives can occur through Channel 1 or Channel
2. A “Single-Bus Module” must be installed in the Controller 1 (lower) slot. This
module connects Channel 1 and Channel 2 creating a single continuous SCSI bus.
NOTE: In the preceding logical diagram, the drive slots are used to indicate
which drives are connected to which channel. They should not be
confused with the disk drive SCSI IDs. Those IDs are pre-determined by
the SCSI SAF-TE Cluster card switch settings.
1 Remove the SCSI SAF-TE Clustering card installed in the enclosure. Loosen
the two thumb screws and remove the card from its slot location.
2 Locate the switches on the card and set them as described in the switch
setting diagrams.
Some configurations have multiple switch setting options available, choose
the setting that is appropriate for your system.
Connectors
Single BusModule
SEP
T= Location of internal termination
(autosense allows the physical connection
to disable termination)
T
T
T
T
SCSI SAF-TE Clustering Card/SAF-TE Disk I/O Card
Drives 7 - 12
Drives 1 - 6
CH 1CH 2
HostHost
SEP
SBE
SBE
Single Bus Clustering Configuration
Chapter 3 - Setup and Installation
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SCSI SAF-TE Clustering Card Switch and Jumper Locations
There is one switch setting, refer to the switch setting illustration below and
verify the switches are set as illustrated.
Single-Bus Switch Setting
3 Re-install the SCSI SAF-TE Clustering card. Slide the card into the slot and
ensure that it seats completely. Secure the card by tighten the two thumb
screws.
4 Install the Single-Bus Module in the Controller 1 slot.
a Remove the Cover plate. Loosen the six thumb screws and pull the cover
plate from the enclosure.
b Slide the Single-Bus Module in the Controller 1 (lower) slot, and secure it
by pressing the latches into place.
c Re-install the Cover plate. Tighten the six thumb screws, do not
overtighten.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Star
t
Remote
Drive
Star
t
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
Swi tch Set t ingsID 1
Slo t 1
S lo t 2
S lo t 4
S lo t 5
S lo t 7
S lo t 8
S lo t 10
S lo t 11
ID 2
ID 3 ID 4
ID 9 ID 10
ID 11 ID 12
Slo t 3 S lo t 6 S lo t 9 S lo t 12ID 5 ID 6 ID 13 ID 14UP (1)
DOWN (0) Dr ive IDs o f the Dr ive S lo ts (Dr ive Channe l S ide)
SAF-TE ID = 15
Sing le -Bus Mode
Single Bus Clustering Configuration 77
Chapter 3 - Setup and Installation
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Single-Bus Module Installation
5 Connect the SCSI data cable(s) from the host system HBAs to the SCSI
SAF-TE Clustering card.
Cabling Diagrams Single Enclosure - Single-Bus Mode
This completes the setup, refer to “Powering On the Storage System” on page 80.
Follow your operating system requirements for preparing new disk drives.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Cover Plate
Single-BusModule
SCSI Data Cable
Ethernet Cables Ethernet Cables
Switches
SCSI Data Cable
SAFTE Disk I/O
Host Computer
imageRAID IRS-JBOD
Chl 1
Ctlr 1 Ctlr 2SAF-TE
Chl 2
Single BusModule
PowerSupply
PowerSupply
CoolingFans
Host Computer
Single Bus Clustering Configuration
Chapter 3 - Setup and Installation
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Upgrades
At some point you may have a need to upgrade your storage system to increase
the storage capacities and/or the RAID capabilities. The imageRAID SCSI Series
Storage System provides you with this ability to meet your expanding data
storage requirements.
The imageRAID controllers support a feature know as “drive roaming,” where the
controllers can keep track of which drive belong to which logical arrays. In the
event the drives’ enclosure is changed or they are moved to another enclosure
attached to the same set of controllers, the arrays will not be lost or damaged.
The upgrade process is relatively easy, you simply refer to the new Enclosure
Configuration section to find the new configuration that supports the number of
enclosures/drives you will be adding. Set the enclosure SAF-TE Disk I/O card(s)
switch settings for the new configuration and cabling the storage system enclosures
as indicated. Then, if applicable, refer to the Topology Host Cabling section to
locate the new topology and re-cable your new configuration as indicated.
NOTE: Changing operating mode topologies may have an effect on which
configuration you may use. Refer to the Enclosure Configuration section
and the Topology Host Cabling section to ensure that you have selected
a configurations that is supported. Refer to “Operating Modes Overview”
on page 21 for more information.
NOTE: You will not be required to move disk drives around in the enclosure(s),
the Drive Roaming feature will locate those drives when the entire
system is powered back up.
Upgrades 79
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Powering On the Storage System
After you have the system setup and installed, you are ready to power on the
storage system enclosure(s).
NOTE: Ensure that none of the data cables or power cables are obstructing the
air flow exiting the cooling fan module.
1 Locate the power supply On/Off switches at the rear of the enclosure(s).
2 Press each power supply switch to its “On” position. (Repeat this step for
each of the attached storage system enclosure(s).)
All enclosures will perform a power on self test during their initial start.
3 Next power on the host computer(s) which is connected to the storage
system.
Powering Off the Storage System
NOTE: If you are planning to completely shut down the entire system, power
down the host system first.
1 If applicable, ensure that the controller(s) have been gracefully shut down.
Refer to “Shutdown Both” in the VT-100 or AdminiStor software guides.
2 Press each enclosure’s power supply On/Off switches to their “Off” position.
3 Repeat the above step for each of the attached storage system enclosure(s).
Powering On the Storage System
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Accessing the imageRAID Controllers
There are two types of software user interfaces provided to access, configure and
manage the imageRAID Controllers; they are AdminiStor Storage Management
software and the controller’s onboard Disk Array Administrator software.
AdminiStor is a HTML/Java application that provides a GUI interface through a
standard web browser for configuration and management of the disk arrays.
The onboard firmware-based Disk Array Administrator software provides a
VT-100 terminal interface which is accessed by directly attaching to either one or
both controllers service ports.
For detailed software information. refer to the AdminiStor Software Guide or the
VT-100 Software Guide.
With either software product, you can:
� View component status.
� Create and manage disk arrays.
� Monitor system status.
� Manage drive spares.
� Configure the controller.
� Manage disk drives and enclosure components.
At the end of this chapter are procedures for updating the imageRAID
Controller’s onboard firmware.
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Accessing the Disk Array Administrator Software/VT-100
You can gain access to the imageRAID Controller firmware-based Disk Array
Administrator software using a VT-100 terminal accessed through one of the RS-232
controller service ports located at the rear of the enclosure. You must use a
null-modem serial cable to connect the terminal to either the Controller 1 (CTRL 1)
or Controller 2 (CTRL 2) service ports. It is recommended to connect to the specific
controller to which you wish to access. For example; in an active-active
configuration where Controller 1 is the primary controller, access the arrays and
utilities through the CTRL1 port.
Configure your host system or terminal RS-232 port to use the following settings:
Set the communications parameters for the terminal program as follows:
To access the controllers using a VT-100 terminal:
1 From the computer or terminal connected to one of the controller ports, start
your terminal or terminal emulation software.
Be sure that your terminal emulation software is set to use the correct COM
port on your computer. See Terminal Emulator and COM Port Problems in
chapter 6 for more details on how it can auto-detect the baud rate.
Setting Value
Terminal Emulation VT-100 or ANSI (for color support)
Font Terminal
Translations None
Columns 80
Setting Value
Baud Rate 115,200
Data Bits 8
Stop Bits 1
Parity None
Flow Control None
Connector COM1 (typically)
Accessing the Disk Array Administrator Software/VT-100
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The initial Boot and POST screens are displayed.
Boot and POST Screen
2 Following the Boot and POST screens the System Menu is displayed.
System Menu Screen
3 You can now perform all of the functions described in the following
chapters. All steps start from the System Menu.
If an event has occurred, you will see a message about the problem. This
message will also be stored in the event log.
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Menu System
Below and on the next page are charts of the menu system for the onboard Disk
Array Administrator software. These are provided to assist you with quickly
locating a specific software function within the menu system.
Disk Array Administrator Software Menu 1 of 2
System Menu
* Applicable only with dual controllers.
Array MenuAdd an ArrayDelete an ArrayPool Spare MenuDisplay DrivesAll Partitions MenuConfiguration MenuUtilities MenuEvent Log Menu* Other Controller MenuShutdown/Restart
Array Menu
Array StatusDrive StatusAbort InitializationVerify FunctionExpand FunctionAdd SpareDelete SpareChange Array nameTrust Array* Switch Array OwnerPartition MenuAdd a PartitionDelete a Partition
Verify Function
Start VerifyView Verify StatusAbort Verify
Expand Function
Start ExpandView Expand Status
Add an Array
Enter Array NameSingle PartitionEnter LUNSelect RAID TypeNumber of DrivesSelect DrivesChunk SizeNumber of Spares
Pool Spare Menu
Display Pool SpareAdd Pool SpareDelete Pool Spare
Partition Menu
Partition StatusPartition StatisticsExpand PartitionChange LUNChange Partition NameDelete This Partition
Partition Statistics
View StatisticsReset Statistics
Menu System
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Menu System (continued)
Disk Array Administrator Software Menu 2 of 2
System Menu
* Applicable only with dual controllers.
Array MenuAdd an ArrayDelete an ArrayPool Spare MenuDisplay DrivesAll Partitions MenuConfiguration MenuUtilities MenuEvent Log Menu* Other Controller MenuShutdown/Restart
Configuration Menu
Set Date/TimeHost ConfigurationChannel ConfigurationSEP ConfigurationDisk ConfigurationBackoff PercentUtility PriorityAlarm MuteOption ConfigurationRestore Defaults
Set Date/Time
Set TimeSet Date
Channel Configuration
ChannelBus SpeedDisable Domain ValidationInitiator ID
SEP LUNs
SEP SettingsSEP LUN
Disk Configuration
Write-Back CacheSMART
Drive Utilities Menu
Blinik Drive LEDClear MetadataDown DriveTest Unit ReadyDisplay Drive Cache
Overall Statistics
View StatisticsView R/W HistogramReset All Statistics
Option Configuration
Operating ModeCache LockBatteryTrust ArrayDynamic Spare ConfigurationEnclosure Features
SEP Settings
Poll RateTemperatureSlot FlagsGlobal Flags
Host Configuration
Channel 0 or 1Enable/DisableTarget IDController LUNTopology (Loop or Point-to-Point)* Reset on Failover
Utilities Menu
RescanHot Swap PauseHardware InformationLUN InformationDrive Utilities MenuOverall Statistics
* Other Controller Menu
Other InformationKill OtherUnkill OtherShutdown OtherShutdown Both
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Updating imageRAID Controller Firmware
The following information describes the procedures to upload new firmware to
the imageRAID Controllers. The firmware is uploaded offline and during the boot
process.
1 Connect one end of the null-modem RS-232 cable to the imageRAID
Controller 1 Service port located on the rear panel of the enclosure.
Connecting the RS-232 Cable
The cable is a female-to-female DB-9 null-modem serial cable.
2 Connect the other end of the cable to either a host system’s serial
communication port or a VT-100 type terminal.
3 On a host system, run a terminal emulation program or start the terminal.
4 Verify the communication parameters are as follows:
• 115,200 Baud
This is the speed at which the controller is communicating.
• 8 Data bits• 1 Stop bit• None (parity)• Flow Control Off
5 Boot the imageRAID Controller Enclosure.
6 When the boot information appears on the screen press the <Space Bar>.
CTRL 1
CTRL 2
SAF-TEController 1: Service Port
SAF-TE Service Port
Controller 2: Service Port
Updating imageRAID Controller Firmware
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FLASH Loader Screen
7 Select option “3” xmodem by pressing the <3> key.
FLASH Loader Waiting for Transfer Selection Screen
8 Using the mouse, click on the pull-down menu Transfers and select “Send.”
Updating imageRAID Controller Firmware 87
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Send File Screen
9 Click the browse button and locate the new Firmware file and click “Send.”
The firmware file will have a “.fla” extension.
NOTE: Ensure that the protocol “Xmodem” is selected.
From the Xmodem send screen you can monitor the progress of the upload.
You can safely stop the transfer without affecting your existing firmware any
time during the transfer until it has been completed. The upload does not
overwrite the firmware during the upload process, it writes the new code
into unused EEPROM space until completed, then copies the new firmware
code to the EEPROM active region.
If you elect to stop an upload progress, ensure that the stop (abort)
command was completed by typing <Control-X> at the cursor.
10 After the upload is successful, the Flash Loader will reboot the controllers.
During the reboot it will bring the second controller offline, if applicable, and
update its firmware.
Updating imageRAID Controller Firmware
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Monitoring Systems
In this chapter you will find information about using the enclosure’s onboard
monitoring systems. Also you will find procedures to update the enclosure’s
SAF-TE Disk I/O card firmware.
Using a VT-100 terminal (or emulation), the SAF-TE RS-232 Service port provides
an interface to the enclosure’s monitoring system and firmware.
You should monitor your storage system regularly to ensure that the disk drives,
controllers, arrays, and enclosure components are working properly. The front
bezel LEDs provide monitoring information on enclosure components, fan status,
disk drive status, controller status, and array monitoring. The “One-Touch
Annunciation” Configuration Display provides information about switch settings,
I/O card and controller presence from the touch of a button.
NOTE: Refer to your software user’s guide that accompanied your product for
details on configuring and setting up the logical arrays and imageRAID
Controllers.
Enclosure Component Monitoring
This section covers notifications provided by the front bezel LEDs and a detailed
explanation of the “One-Touch Annunciation” monitoring system.
As part of the monitoring notifications, an audible alarm works in conjunction
with the enclosure’s LEDs, and will sound an alert for any fault that occurs with
an enclosure component, logical array, or disk drive. To silence the alarm, simply
press the Alarm Reset button.
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Status Indicator LEDs
The Status Indicator LEDs located above the Alarm Reset button, comprise the
Power-On LED, Channel Status LED, Power Supply Status LED, and Fan Status
LED. The following are descriptions of each of the LEDs.
Power-On LED
The Power-On LED signifies that the enclosure is powered on and will be
illuminated green when power has been applied.
Channel Status LED
The Channel Status LED will remain green at all times when the enclosure is
setup in JBOD mode.
The LED will indicate the status of the logical array(s), when enclosure is setup in
a imageRAID configuration. It will also indicate a failed controller by alternately
blinking green and amber when a failure does occurs.
Power Supply Status
The Power Supply Status LED indicates the condition of the power supplies. The
LED will illuminate steady green when both power supplies are functioning
normally and will change to amber if one of the power supplies should fail or be
turned off.
A failed power supply can be identified by the illumination of the amber “Fault”
LED located on the power supply.
Fan Status
The Fan Status LED indicates the condition of the cooling fans. The LED will
illuminate green when bath fans are functioning normally and will change to
amber if any of the fans fail.
Status Indicator LEDs
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Drive LEDs
The Drive LEDs are located on the left side of the front bezel in between the
ventilation ribs and comprise the Drive Status LEDs and Drive Activity LEDs. The
Drive LEDs are grouped in pairs and are in the general location of the drive slot.
These Drive LEDs assist with identifying which drive is experiencing I/O activity,
array status, and the presence of a drive in a drive slot.
The Drive Status LEDs comprise the “One-Touch Annunciation” monitoring
system which can display the status of controllers and SAF-TE Disk I/O or SCSI
SAF-TE Cluster card switch settings from the touch of the Alarm Reset button.
Refer to “One-Touch Annunciation” on page 95 for more information.
Front Bezel LED and Component Identification
Also, on each disk drive carrier are “LitePipes.” They are located on the lower
right side of each drive carrier. The LitePipes present the some of the information
provided by the front bezel Drive LEDs, that is drive activity information and
drive fault (failure) or data rebuilding notifications when the front bezel is
removed.
RESET ALARM
Drive LEDs
Alarm Reset Button(Press-to-Display Annunciation)
Power On LED
Channel Status LED
Power Supply Status LED
Cooling Fan Status LED
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Drive Slot 1 Drive Slot 4 Drive Slot 7 Drive Slot 10
Drive Slot 2 Drive Slot 5 Drive Slot 8 Drive Slot 11
Drive Slot 3 Drive Slot 6 Drive Slot 9 Drive Slot 12
Drive LEDs 91
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Drive Carrier LitePipes
Drive Status LEDs
There are twelve Drive Status LEDs. The Drive Status LED is the left LED of each
pair of Drive LEDs. This LED will illuminate steady green when a drive is present
in the slot and powered on. If a drive is not present the LED will be off.
Drive Activity LEDs
There are twelve Drive Activity LEDs. These LEDs will flash on to indicate no
activity or a read operation, while when the LED is off it indicates a write
operation. The Drive Activity LED is the right LED of each pair of Drive LEDs.
Audible Alarm
An audible alarm will sound when any of the enclosure’s component condition
changes to an abnormal state. To silence the alarm, press the Alarm Reset button
located on the front bezel. The corresponding alarms’ LED will remain
illuminated until the condition returns to a normal state.
Act iv i t y LED
Fau l t LED
Li teP ipes
Drive Status LEDs
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LED Matrix
When the RAID Controllers are installed, they have control of the Drive Status
and Drive Activity LEDs.
Front Bezel LEDs
These LEDs are located on the front bezel. Refer to the table below for a list of the
LED conditions and their meaning:
imageRAID SCSI Series Front Bezel LED Matrix
Condition Drive Status LED
At power up. Steady Green
DRIVE READY Not assigned to an array.
Blinking Green
DRIVE READY Assigned to an array.
Steady Green
DRIVE ERROR - FAULT Not assigned to an array.
Blinking Green
DRIVE ERROR - FAULT (Failed) Assigned to an array.
Fast Blinking Amber(3 blinks per second)
ARRAY CRITICAL (Remaining good drive LEDs) Assigned to an array.
Slow Blinking Amber(1 blink per second)
RESET ALARM
Drive LEDs
Alarm Reset Button(Press-to-Display Annunciation)
Power On LED
Channel Status LED
Power Supply Status LED
Cooling Fan Status LED
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Drive Slot 1 Drive Slot 4 Drive Slot 7 Drive Slot 10
Drive Slot 2 Drive Slot 5 Drive Slot 8 Drive Slot 11
Drive Slot 3 Drive Slot 6 Drive Slot 9 Drive Slot 12
LED Matrix 93
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POOL SPARE Blinking Green
HOT SPARE Rebuild mode (All Drive Status LEDs)
Steady Amber
HOT SPARE READY Assigned to an array.
Steady Green
EMPTY DRIVE SLOT Off
Channel Status LED
Array is Fault-Tolerant Steady Green
Array is in Rebuild Mode Steady Amber
Array has a failed drive. Steady Amber
Controller Failure Blinking Amber and Green
imageRAID SCSI Series Front Bezel LED Matrix
Condition Drive Status LED
LED Matrix
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One-Touch Annunciation
The imageRAID SCSI Series “One-Touch Annunciation” monitoring system is an
easily accessible press-to-touch display of the SAF-TE Disk I/O or SCSI SAF-TE
Cluster card switch settings, enclosure bus mode, type of host interface, serial
communication BAUD rate, and controller status using the Drive Status LEDs and
the Alarm Reset button.
By pressing and holding the Alarm Reset button, the Drive Activity LEDs will all
be extinguished and the Drive Status LEDs will illuminate in unique combinations
to indicate the settings and conditions. Below is an illustration and a table that
describes the Drive Status LEDs and their meanings:
Status LED Call-Outs
Status LED Conditions
RESET ALARM
Bus Configuration
Host TypeInterface
NotApplicable
SAF-TE CardSwitch 1
SAF-TE CardSwitch 6Baud Rate
NotApplicable
SAF-TE CardSwitch 2
SAF-TE CardSwitch 7Delay Start
Controller 1Status
Press and Holdto display settings
SAF-TE CardSwitch 3 RAID Addressing
SAF-TE CardSwitch 8Remote Start
Controller 2Status
One-Touch Annunciation Configuration Display
Slot 1Bus Configuration
Slot 4SAF-TE Card Switch 1 (A0)
Slot 7SAF-TE Card Switch 2 (A1)
Slot 10Fan Speed Control
Slot 2Host Interface Type
Slot 5SAF-TE Card Switch 6
Baud Rate
Slot 8SAF-TE Card Switch 7
Delay Start
Slot 11SAF-TE Card Switch 8
Remote Start
Slot 3Not Applicable
Slot 6Not Applicable
Slot 9Lower Controller Present
Slot 12Upper Controller Present
LED On = Dual BusLED Off = Single Bus
LED On = Up (Enabled)LED Off = Down (Disabled)
LED On = Up (Enabled)LED Off = Down (Disabled)
LED On = Enabled (RAID)LED Off = Disabled (JBOD)
LED On = SCSI HostLED Off = Fibre Host
LED On = 19,200 BAUDLED Off = 9,600 BAUD
LED On = Delay Start DisalbedLED Off = Delay Start Enabled
LED On = Remote Start DisabledLED Off = Remote Start Enabled
LED On "Green" = OK LED On "Amber" = FailedLED Off = Missing
LED On "Green" = OK LED On "Amber" = FailedLED Off = Missing
One-Touch Annunciation 95
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The following are examples of the One-Touch Annunciation LEDs for switch
settings, controller and bus configurations when the Alarm Reset button is pressed.
IRS-JBOD Single-Bus Configuration Annunciation LED Sample
NOTE: SAF-TE switches 1 (A0) and 2 (A1) work in combinations to create a
specific range of SCSI IDs.
When you press and hold the Alarm Reset button, and you get the following
conditions, then you will know:
IRS-JBOD Single-Bus Example
Drive Slot Status LED LED Condition Indication
Drive Slot 1 Off Enclosure in single-bus mode.
Drive Slot 2 On SCSI Host Interface.
Drive Slot 3 Off N/A
Drive Slot 4 Off Switch 1 (A0) is in the DOWN position. This will set the Drive Slot SCSI IDs to ID 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, and 14. It reserves IDs 0 and 7 for the HBAs, and ID 15 for the SAF-TE processor.
Drive Slot 5 Off Indicates that Switch 6 is in the DOWN position which sets the BAUD rate for the SAF-TE RS-232 service port to 9,600.
Drive Slot 6 Off N/A
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Drive Slot 1 Drive Slot 4
Example of LEDs
Drive Slot 7 Drive Slot 10
Drive Slot 2 Drive Slot 5 Drive Slot 8 Drive Slot 11
Drive Slot 3
LED ON Condition (Green)
LED OFF Condition
Drive Slot 6 Drive Slot 9 Drive Slot 12
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP (1)
DOWN (0)
SAF-TE D isk I /O CardSwi tch Set t ings
One-Touch Annunciation
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Active-Active/Active-Passive Dual-Bus Configuration Annunciation LED Sample
NOTE: SAF-TE switches 1 (A0) and 2 (A1) work in combinations to create a
specific range of SCSI IDs.
When you press and hold the Alarm Reset button, and you get the following
conditions, then you will know:
Active-Active/Active-Passive Dual-Bus Example
Drive Slot 7 Off Switch 2 (A1) is in the DOWN position. This will set the Drive SCSI IDs of the slots to IDs 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14. It reserves IDs 0 and 7 for the host bus adapter, and SCSI ID 15 for the SAF-TE processor.
Drive Slot 8 On Switch 7 is in the UP position which sets the Delay Start mode to be disabled.
Drive Slot 9 Off Controller is not installed.
Drive Slot 10 Off Switch 3 (RD) is in the DOWN position which disabled RAID addressing and is used when configuring JBOD mode.
Drive Slot 11 On Switch 8 is in the UP position which sets the Remote Start mode to be disabled.
Drive Slot 12 Off Controller is not installed.
Drive Slot Status LED LED Condition Indication
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Status LEDs
Activity LEDs
Drive Slot 1 Drive Slot 4 Drive Slot 7 Drive Slot 10
Drive Slot 2 Drive Slot 5 Drive Slot 8 Drive Slot 11
Drive Slot 3
LED ON Condition (Green)
LED OFF Condition
Drive Slot 6 Drive Slot 9 Drive Slot 12
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
SAF-TE D isk I /O CardSwi tch Set t ings
UP (1)
DOWN (0)
Example of LEDs
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Drive Slot Status LED LED Condition Description
Drive Slot 1 On Enclosure in dual-bus mode.
Drive Slot 2 On SCSI Host Interface.
Drive Slot 3 Off N/A
Drive Slot 4 Off Switch 1 (A0) is in the DOWN position. This will set the Drive SCSI IDs of the slots to IDs 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14. It reserves IDs 0 and 7 for the host bus adapter, and SCSI ID 15 for the SAF-TE processor.
Drive Slot 5 Off Indicates that Switch 6 is in the DOWN position which sets the BAUD rate for the SAF-TE RS-232 service port to 9,600.
Drive Slot 6 Off N/A
Drive Slot 7 Off Switch 2 (A1) is in the DOWN position. This will set the Drive SCSI IDs of the slots to IDs 1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 13, 14. It reserves IDs 0 and 7 for the host bus adapter, and SCSI ID 15 for the SAF-TE processor.
Drive Slot 8 On Switch 7 is in the UP position which sets the Delay Start mode to be disabled.
Drive Slot 9 On Controller is present.
Drive Slot 10 On Switch 3 (RD) is in the UP position which enables RAID addressing and is used when configuring RAID mode (NexStor 4110S or NexStor 4120S).
Drive Slot 11 On Switch 8 is in the UP position which sets the Remote Start mode to be disabled.
Drive Slot 12 On Controller is present.
One-Touch Annunciation
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Enclosure SAF-TE Monitoring
Another feature of the imageRAID SCSI Series storage system is the enclosure
monitoring capabilities. The firmware-based monitoring program allows users to
view storage system component status and information about the firmware. You
may access this program by connecting a VT-100 terminal to the SAF-TE Service
port.
To access the monitoring program:
1 Connect one end of the null-modem RS-232 cable to the SAF-TE Service port
located on the rear panel of the enclosure.
Connecting the RS-232 Cable
The cable is a female-to-female DB-9 null-modem serial cable.
2 Connect the other end of the cable to either a host system’s serial
communication port or a VT-100 type terminal.
3 On a host system, run a terminal emulation program or start the terminal.
4 Verify the communication parameters are as follows:
• 9600 Baud (optional 19,200)
Baud rate set by Switch 6 – up for 19,200 and down for 9,600 (verify the setting by pressing the Alarm Reset button and noting the condition of the Drive Status LED for Drive slot 5.
• 8 Data bits• 1 Stop bit• None (parity)• Flow Control Off
CTRL 1
CTRL 2
SAF-TEController 1: Service Port
SAF-TE Service Port
Controller 2: Service Port
Enclosure SAF-TE Monitoring 99
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5 At the screen cursor, type <Control-E>. The Enclosure Terminal Utility menu will appear.
Enclosure Terminal Utility Screen
6 To monitor the enclosure components, select option “1” Show Enclosure Environment Status by pressing the <1> key.
The screen provides a status list of the internal components such as disk drives in a specific slot, temperature of the thermal sensors, cooling fan status, power supply status, and statistics on enclosure “up time.”
Enclosure Environment Status Screen
NOTE: System degradation will occur if the display is left in the “Show Enclosure Environment Status” mode. After you have viewed the information press the <Esc> key to remain idle in the main Enclosure Terminal Utility screen.
7 Press the <Esc> key to return to the Main menu.
NOTE: Options 2 through 4 are factory and technical support features. Do not access these features unless instructed to do so by a support technician.
Enclosure SAF-TE Monitoring
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Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
The following information describes the procedures to upload new firmware to
the SAF-TE Disk I/O or SCSI SAF-TE Cluster card. The firmware can be uploaded
in a “live” environment. There is no need to down the system to perform this
function.
1 Connect one end of the null-modem RS-232 cable to the SAF-TE Service port
located on the rear panel of the enclosure.
Connecting the RS-232 Cable
The cable is a female-to-female DB-9 null-modem serial cable.
2 Connect the other end of the cable to either a host system’s serial
communication port or a VT-100 type terminal.
3 On a host system, run a terminal emulation program or start the terminal.
4 Verify the communication parameters are as follows:
• 9600 Baud (optional 19,200)
Baud rate set by Switch 6 – up for 19,200 and down for 9,600 (verify the setting by pressing the Alarm Reset button and noting the condition of the Drive Status LED for Drive slot 5.
• 8 Data bits• 1 Stop bit• None (parity)• Flow Control Off
5 At the cursor, type <Control-E>.
CTRL 1
CTRL 2
SAF-TEController 1: Service Port
SAF-TE Service Port
Controller 2: Service Port
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware 101
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The Enclosure Terminal Utility menu will appear.
Enclosure Terminal Utility Screen
6 Select option “5” Firmware Upload by pressing the <5> key.
Upload Firmware Screen
7 Press the <u> key (lower case) to start the upload. Using the mouse, click on
the pull-down menu Transfers and select “Send.”
Send File Screen
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
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8 Click the browse button and locate the new Firmware file and click “Send.”
The firmware file will have a “.S3R” extension.
NOTE: Ensure that the protocol “Xmodem” is selected.
From the Xmodem send screen you can monitor the progress of the upload.
You can safely stop the transfer without affecting your existing firmware any
time during the transfer until it has been completed. The upload does not
overwrite the firmware during the upload process, it writes the new code
into unused EEPROM space until completed, then copies the new firmware
code to the EEPROM active region.
If you elect to stop an upload progress, ensure that the stop (abort)
command was completed by typing <Control-X> at the cursor.
Xmodem Transfer Screen
9 After the upload is successful, the Upload Program will then update the
second SAF-TE processor.
Transfer to Second Controller Processor Screen
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A progress status screen will appear. At 100% the following screen will
appear.
Update Confirmation Screen
After the confirmation is complete, the following screen will appear.
Update Status Screen
10 Verify the new firmware has successfully loaded, type <Control-E>.
11 Press the <Esc> key to return to the Main menu.
Uploading SAF-TE Disk I/O & SCSI SAF-TE Cluster Card Firmware
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Enclosure Fan Speed Control
The SAF-TE Disk I/O or SCSI SAF-TE Cluster card has a firmware-based VT-100
interface which provides an option for fan speed control. This allows the user with
the choice to enable or disable the automatic control feature. It provides for more
efficient management of the cooling fans and a whisper mode fan operation for
noise sensitive environments where it significantly reduces the noise created by the
cooling fans running constantly at full speed. Under normal conditions it is not
necessary to run the cooling fans at full speed.
When this option is enabled, the software will control the RPM of the cooling
fans based on enclosure temperature parameters and its installed components.
For example, if any one or a combination of the following occurs, the cooling fan
RPMs will be set to the maximum software controlled RPM: a disk drive is
removed from any of the drive slots 4 through 9, a power supply is removed, one
of the cooling fans in the cooling fan module fails, a temperature sensor fails, or
a SAF-TE processor fails.
Fan Speed Setup Screen
A manual override of the fan speed control is available for special circumstance
environments. Referring to the illustration on the following page, two jumpers are
provided on the fan module printed circuit board to override the firmware
control of the fan speeds.
Enclosure Fan Speed Control 105
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This hardware setting provides full voltage to the fans for maximum operational
speed, which is greater than the maximum speed set by the automatic software
control. This configuration is normally used when fan speed noises are not an
issue, and the ambient operating temperature is at or above 30°C (86°F), thus
ensuring that maximum available cooling is being provided.
Cooling Fan Module
The jumpers JP1 and JP2 are by default are offset which enables the use of the
automatic fan speed control. The jumper JP1 controls Fan 0 and JP2 controls Fan 1.
Placing the included jumper on both pins of each jumper will override the
automatic setting and set the fans to maximum power.
Fan Speed Override ControlJumpers JP1 (Fan 0)and JP2 (Fan 1)
Enclosure Fan Speed Control
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SAFTE Commands Debug
This feature (Option 2) provides manufacturers and developers the ability to
monitor “read and write” command buffers for both SAF-TE processors. The
interface allows the user to scroll back through the buffer data, or select the
“Transfer>Capture Text” to save the buffer captures to a text file.
SAFTE Commands Debug Screen
NOTE: Options “2 - SAFTE Commands Debug”, “3 - Environment Testing Menu”,
and “4 - Cycle Test” are made available for manufacturers and OEMs for
development purposes. They are not intended as normal user’s options.
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SAFTE Commands Debug
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Troubleshooting
This chapter provides typical solutions for problems you may encounter while
using the imageRAID SCSI Series Storage System.
General Enclosure Problems
Common SCSI Bus Problems
SCSI Bus problems can usually be attributed to cabling issues or a faulty SAF-TE Disk
I/O or SCSI SAF-TE Cluster card. Refer to the chart below and review troubleshooting
and fault isolation procedures to assist you in identifying the suspect component.
Symptom Reason Solution
Fails to power on. Power cord(s) not connected properly.
Power not available at the outlet.
Power switch not in the proper position.
Faulty power cord.
Faulty power supply.
Verify that the power cord is properly connected to the power module.
If the enclosure is plugged into a three-hole grounded outlet, verify that power to the outlet has not been interrupted. This can be accomplished by testing the outlet with a known working appliance, like a lamp.
Be sure that the power switch is in the “On” position, labeled with an “I.”
Replace the power cord.
Identify the failed PSU, see “Replacing an AC Power Supply” on page 125.
If the enclosure is not responding, contact your service provider.
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SCSI Bus Symptom Probable Cause Solution
Host SCSI BIOS scan hangs.
Possible termination or SCSI ID conflict.
Check the Host ID and proper system configuration.
Not all drives connected to the HBA channels are displayed during boot.
Possible termination or SCSI ID conflict.
Check that the SCSI connectors are properly connected. Check SCSI ID assignments.
If the enclosure is the daisy-chained enclosure, check the I/O card jumper settings in the last enclosure on the chain.
SCSI Bus hangs, SCSI Bus excessively retries, and/or drives drop offline.
Faulty connectivity.
Faulty SAF-TE Disk I/O & SCSI SAF-TE Cluster card (IRS-JBOD or Daisy-chained enclosure) or Host I/O card.
Re-check the cable connections to the SAF-TE Disk I/O & SCSI SAF-TE Cluster card and/or Host SCSI I/O card.
If you have daisy-chained storage systems connected on the SCSI bus, you will need to perform some fault isolation.
If all the drives on one bus are offline, start with the daisy-chain storage system. Disconnect the data cable. If the remaining drives return to a normal state it indicates that the isolated storage system has the faulty component.
If this does not return the remaining drives to a normal state, it is a good indication that the problem is in the first storage system and/or its SAF-TE Disk I/O & SCSI SAF-TE Cluster card.
You may use the SAF-TE Disk I/O & SCSI SAF-TE Cluster card from the other storage system or a “new” known good card. Substitute this card for the suspect card and it should return the storage system bus to a normal condition.
NOTE: A return to a normal condition is indicated by the drives coming back online.
After the faulty card is replaced, begin re-connecting the data cables on the SAF-TE Disk I/O & SCSI SAF-TE Cluster card, noting the SCSI bus and drives remain in a normal state.
Re-check the cables to the SAF-TE Disk I/O & SCSI SAF-TE Cluster card, Host SCSI I/O card, and the host adapter.
Common SCSI Bus Problems
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Host system does not see the RAID Controllers.
Possible termination conflict.
Remove the Host SCSI I/O cards and install the jumper on both pins on JP1 and JP2.
SCSI Bus hangs, (continued).
Faulty SAF-TE Disk I/O & SCSI SAF-TE Cluster card (IRS-JBOD or Daisy-chained enclosure) or Host I/O card (continued).
Replace the SAF-TE Disk I/O & SCSI SAF-TE Cluster card or Host SCSI I/O card.
If the problem still exists in a RAID configuration, with the primary enclosure isolated to the host system, follow the procedures above to test the connectivity and operation of the Host SCSI I/O card. There are two Host SCSI I/O cards installed in RAID configurations, and you can move the cable to the second card, same channel connector to fault isolate the Host SCSI I/O card.
SCSI Bus Symptom Probable Cause Solution
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Terminal Emulator and COM Port Problems
Symptom Reason Solution
Screen continuously puts out garbage characters.
The likely cause of this problem is a baud rate mismatch between the terminal emulator and the controller. The default baud rate is 115,200. Follow these steps if you set your terminal emulator to this rate and still get garbage characters:
1 If you are able, shut down the controller.
See “Rebooting the Controller” in the VT-100 or AdminiStor software guides. If you are unable to shut down the controller, continue with step 2.
2 Turn off the power to the enclosure containing the controller.
3 Press the spacebar of your terminal emulator.
4 Turn on the power while continuing to press the spacebar. This will allow the controller to auto-detect the baud rate setting.
5 When the Flash Utility appears, select option 5 to continue to boot the controller.
Note: Some terminal emulators do not immediately change to the new baud rate settings, and you have to exit and restart the emulator to use the new settings.
Nothing is displayed on the terminal emulator screen.
The probable cause of this problem is a bad RS-232 cable connection or swapped transmit/receive lines.
If the cable is properly connected on both ends, try another null modem cable.
Ensure that you are not using a straight through RS-232 cable.
Screen is updated, but will not respond to keystrokes.
Improper setting. Disable hardware flow control on the terminal or terminal emulator. The controller supports XON/XOFF flow control and works properly in most cases with no flow control.
Terminal Emulator and COM Port Problems
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Host SCSI Channel Problems
Device SCSI Channel Problems
Symptom Solution
The host SCSI BIOS scan displays “Device name not available.”
The controller is properly installed, but no arrays have been created. Use AdminiStor or VT-100 Disk Array Administrator to create an array and reboot the host system.
The host SCSI BIOS scan hangs. Check that termination is set correctly in the Configuration Menu and the drive enclosure. Check that the device ID set in the software does not conflict with any other devices on the host SCSI channel. If you have a long SCSI cable, try a different or shorter cable.
Only one array is displayed during host SCSI BIOS scan.
Check to ensure that LUN support is enabled. Most SCSI host adapters ship with LUN support disabled by default. Use Display Array Status to check the LUN assignment for each array. If LUN 0 is not assigned to an array, or some other LUN numbers are skipped, use the Change LUN Assignment option for each array until you have LUN numbers starting at 0 with no LUNs skipped. You must reboot the host system to recognize the new LUN assignment.
All arrays are displayed during host SCSI BIOS scan, but only one array is seen by the operating system.
SCSI drivers for some operating systems require a parameter switch to enable LUN support. Check the driver documentation for your host SCSI channel. You may also need to compact the LUN mapping.
Problem Solution
Not all drives connected to the controller device channels are displayed during boot, or the controller hangs during display of connected drives.
Refer to chapter 3 to be sure that the enclosure is properly configured for use with a imageRAID controller. Check termination and ID assignment. If you have enabled Ultra/Ultra2 SCSI on any device channels, try disabling it.
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Problems During Bootup
The following sections describe problems you might encounter during Power On
Self-Test (POST) or during bootup sequence of the enclosure and explains how
to resolve those problems. POST shows problems related to the processor, logic,
and memory.
Symptom Solution
Controller failed the onboard memory test.
When this failure occurs, it means the internal CPU memory failed. Replace the controller to correct the problem.
System hangs at Loading Bridge during BFLU Loader Menu.
Re-flash the firmware to ensure you are using the latest version. See “Upgrading Firmware” in the VT-100 or AdminiStor software guides. If you cannot update the firmware or if the updated firmware does not correct the problem, replace the controller. Dual imageRAID controllers require the same version of firmware on both controllers.
One of the POST diagnostic tests failed.
Contact service provider.
The system hangs at CT_srv starting.
Follow these steps to resolve the problem:
1 Verify that there are no SCSI address conflicts.
2 Check the enclosure(s) to make sure everything is properly connected.
3 If the enclosure(s) and the drive work properly, replace the controller.
The system hangs during a drive scan.
Follow these steps to resolve the problem:
1 Check the enclosure(s) to make sure everything is properly connected.
2 Remove and replace the drive that failed the scan.
3 If the enclosure(s) and the drive work properly, replace the controller.
An Active-Active controller pair hangs during boot up drive scan (typically after displaying CT_Init on the RS-232 display).
Verify that all SCSI channels are connected, cabled, and terminated properly. Verify that the controllers are set to their default configuration (Active-Active:Single Port mode).
An Active-Active controller pair hangs the host system during normal operation or after failing over.
Verify that all SCSI channels are connected, cabled, and terminated properly.
An Active-Active controller pair always fails over after booting up.
Verify that the controller that is failed/killed is set to its default configuration (Active-Active:Single Port mode). Verify the same SDRAM DIMM sizes are in both controllers. Active-Active controllers require the same SDRAM DIMM size.
Problems During Bootup
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Controller Problems
Common Problems and Interpreting the LEDs
Problem Solution
The controller’s STATUS LED is on, but there is no RS-232 display.
Check that the RS-232 cable is the correct type (null-modem). Check that the terminal emulation utility on the computer system is properly configured.
The controller reports a SDRAM memory error.
Check that the SDRAM DIMM is fully seated in the connector and the latches are fully engaged into the DIMM notches.
The controller reports a Battery error.
Verify that the correct NiMH battery pack is installed.
Symptom Reason Solution
Power Supply Status LED is illuminated.
Power supply has failed.
Power supply turned off.
Power supply missing.
Loss of AC power to the power supply.
Replace the suspect faulty power supply.
Ensure that all the power supply switches are in their “On” position.
Replace the missing power supply and turn it on.
Verify that proper AC power is available to the power supplies. If the enclosure is plugged into a three-hole grounded outlet, verify that power to the outlet has not been interrupted. This can be accomplished by testing the outlet with a known working appliance, like a lamp.
Fan Status LED is illuminated.
Failed cooling fan. Replace cooling fan module.
Drive Status LED is not illuminated and a drive is present in the slot.
Fault on the SAF-TE Disk I/O & SCSI SAF-TE Cluster card.
Faulty disk drive.
Faulty SAF-TE Disk I/O & SCSI SAF-TE Cluster card.
Faulty Host SCSI I/O card.
Replace a faulty SAF-TE Disk I/O & SCSI SAF-TE Cluster card.
Replace the faulty disk drive.
Replace the faulty SAF-TE Disk I/O & SCSI SAF-TE Cluster card.
Replace the faulty Host SCSI I/O card.
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Warning and Error Events
There are a number of conditions that trigger warning or error events, activate
the alarm, and may affect the state of the STATUS and FAULT LEDs. The alarm
sounds mainly when the VT-100 or AdminiStor software displays a warning or
error event.
The alarm will silence when you acknowledged the event by pressing the alarm
reset button. The events in these categories are listed below.
Warnings
Warning events let you know that something related to the controller or an array
has a problem. You should correct the problem as soon as possible. The table
below defines each warning event and recommends the action you should take.
Occasionally, references are made in the “software guides,” of which there are
two manuals. They are the AdminiStor Software Guide and the VT-100 Software
Guide.
Event Definition Recommended Action
BATT FAIL INFO A warning condition in the battery pack and/or charging interface has been detected.
Replace the controller. Refer to “Replacing a Controller” in the VT-100,or AdminiStor software guides.
REPLACE BATTERY The battery is approaching its 3-year life span.
Replace the controller. Refer to “Replacing a Controller” in the VT-100 or AdminiStor software guides.
ARRAY CRITICAL One or more drives were downed and the array is online, but is no longer fault tolerant.
Add a spare to the array or the spare pool. Then replace the bad drives. See “Adding a Dedicated Spare” or “Adding a Spare to the Spare Pool” in the VT-100 or AdminiStor software guides.
DRIVE DOWN An error occurred with the drive and it was downed, removing it from the active array.
Add a spare to the array or the spare pool. Then replace the bad drive. See “Adding a Dedicated Spare” or “Adding a Spare to the Spare Pool” in the VT-100,or AdminiStor software guides.
SPARE UNUSABLE The drive still contains metadata that must be cleared.
Clear the metadata from the spare drive. See “Clearing Metadata from a Drive” in the VT-100 or AdminiStor software guides.
Warning and Error Events
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Errors
Error events let you know that something related the enclosure, controller, or
disk drives has failed and requires immediate attention. The table below defines
each error event and recommends the action you should take.
SMART EVENT A disk drive informational exceptions page control (IEPC) predictive failure message was received. No actions by the controller are taken on the drive for these events.
Run diagnostics available from your operating system on the affected drive. Replace the drive, if necessary.
ARRAY OFFLINE More than one drive in a RAID 0 or volume set went down bringing the array to an offline state. This array is no longer accessible by the host.
Replace the bad drive and restore the data from backup.
VOLT/TEMP WARN The analog-to-digital converter monitored a temperature and/or voltage in the warning range.
Check that the controller’s fan is running. Check that the ambient temperature is not too warm. See “Technical Information” on page 141.
UNWRITABLE CACHE
The SDRAM cache has battery backed-up data, and the arrays assigned to this data are not present.
Either determine which drives are missing and reinstall them, or select Yes when asked if you want to discard this data.
SDRAM CORR ECC A correctable single-bit SDRAM ECC error occurred.
If this error occurs frequently, replace the memory.
Event Definition Recommended Action
VOLT/TEMP FAIL
The analog-to-digital convertor monitored a temperature and/or voltage in the failure range.
Check that the enclosure fans are running. Check that the ambient temperature is not too warm. See “Technical Information” on page 141.
ENCLOSURE FAIL
Enclosure specific general purpose I/O triggered a failure condition.
Check the status of the enclosure.
BATTERY FAILED
A failure in the battery pack and/or charging interface has been detected.
Replace the controller.
DISK CHAN FAILED
An error has occurred in communicating on the disk channel.
Check the cables on the channel.
Event Definition Recommended Action
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Disk Errors
If a disk detects an error, it reports the error, which is recorded in the event log.
The following is an example of a disk-detected error.
Disk-Detected Error Example
Using the information in the Sense Key and ASC tables, you can see that this is a
medium error, unrecovered read error – recommended reassignment.
SDRAM UNCORR ECC
A noncorrectable multiple-bit SDRAM ECC error occurred.
Reseat the memory. If the problem continues, replace the memory.
Sense Key Descriptions
Sense Key Description
0h No sense
1h Recovered error
2h Not ready
3h Medium error
4h Hardware error
5h Illegal request
6h Unit attention
7h Data protect
8h Blank check
9h Vendor-specific
Ah Copy aborted
Bh Aborted command
Event Definition Recommended Action
Disk ChannelSCSI ID Sense Code Qualifier
Sense CodeSense Key
Disk Errors
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Disk Channel Errors
Disk channel errors are similar to disk-detected errors, except they are detected
by the controller, instead of the disk drive. Some disk channel errors are
displayed as text strings, others are displayed as hexadecimal values.
The illustration on the following page shows a disk channel error displaying the
hexadecimal codes. Most disk channel errors are informational because the
controller issues retries to correct any problem. Errors that cannot be corrected
with retries will result in another critical event describing the affected disk array
(if any).
Bh Aborted command
Ch Obsolete
Dh Volumes overflow
Eh Miscompare
Fh Reserved
ASC and ASCQ Descriptions
ASC ASCQ Description
0C 02 Write error - auto-reallocation failed.
0C 03 Write error - recommend reassignment.
11 00 Unrecovered read error.
11 01 Read retries exhausted.
11 02 Error too long to correct.
11 03 Multiple read errors.
11 04 Unrecovered read error - auto-reallocation failed.
11 0B Unrecovered read error - recommend reassignment.
11 0C Unrecovered rear error - recommend rewrite data.
47 00 SCSI parity error.
48 00 Initiator-detected error message received.
Sense Key Descriptions
Sense Key Description
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Disk-Detected Error Example
Disk Channel Error Codes
Error Code Description
04 Data overrun or underrun occurred while getting sense data.
05 Request for sense data failed.
20 Selection time-out occurred (displayed as Sel Timeout).
21 Controller detected an unrecoverable protocol error on the part of the target.
22 Unexpected bus-free condition occurred (displayed as Unex Bsfree).
23 Parity error on data was received from a target displayed as Parity Err).
24 Data overrun or underrun has been detected (displayed as Data OvUnRn).
30 Target reported busy status (displayed as Device Busy).
31 Target reported queue full status (displayed as Queue Full).
32 Target has been reserved by another initiator.
40 Controller aborted an I/O request to this target because it timed out (displayed as I/O Timeout).
41 I/O request was aborted because of a channel reset.
42 I/O request was aborted because of controller’s decision to reset the channel.
43 I/O request was aborted because of third-party channel reset (displayed as Abort 3PRST).
44 Controller decided to abort I/O request for reasons other than bus or target reset.
45 I/O request was aborted because of target reset requested by controller.
46 Target did not get response properly to abort sequence.
4B I/O aborted due to operating mode change (such as LVD to SE or SE to LVD) (displayed as Abort MdChg).
50 Disk channel hardware failure (displayed as DskChn Fail). This may be the result of bad termination or cabling.
Disk ChannelSCSI ID Error Code
Disk Channel Errors
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Maintenance
In this chapter you will find the maintenance procedures to replace individual
components, as well as the entire storage system enclosure.
Removing the Front Bezel
1 Using a Phillips screwdriver, unlock the two front bezel fasteners.
Unlocking the Front Bezel
Rotate the fasteners counterclockwise one-quarter turn to unlock.
Reset Alarm
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2 Grasp and pull the front bezel from the enclosure. Refer to the illustration
below.
Removing the Front Bezel
Reset Alarm
Removing the Front Bezel
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Replacing the Cooling Fans
NOTE: The cooling fan module is hot swappable.
WARNING: Do not operate the enclosure for extended periods of time, greater
than five (5) minutes, with the cooling fan module removed. No
cooling is available while the fan module is removed.
1 The cooling fan module is located at the rear of the enclosure. Place your
fingers in the fan module handle and press with your thumb to release the
latch while pulling the module from the enclosure.
Removing the Cooling Fan Module
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 3
Controller 2Controller 1
Channel 1
CH 3Channel 0
CH 0
Channel 2
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Controller 1
Controller 2
Release latch and pull cooling fan module
from the enclosure.
Controller 2Controller 1
Channel 1
Channel 3
CH 3Channel 0
CH 0
Channel 2
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2 Remove the replacement cooling fan module from the shipping container
and inspect for obvious damage. Save the packaging material.
3 Verify that the jumper settings are the same as the cooling fan module being
replaced.
4 Align the cooling fan module with the open fan bay and push the module
into the enclosure until it completely seats.
The latch will reset when the module is completely seated.
The front bezel Fan Status LED will return to a normal state (green).
5 Using the packaging material from the replacement cooling fan module,
re-package and return the failed cooling fan module per your RMA
instructions.
Replacing the Cooling Fans
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Replacing an AC Power Supply
1 Turn the On/Off switch to the “Off” position on the power supply.
If the dual power supply option is installed, the working power supply will
continue to supply sufficient power to keep the system operational while
you replace the failed power supply.
2 Disconnect the AC power cord. Release the power cord bale and pull the
cord from the AC power cord module on the power supply.
Releasing the Power Supply
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 3
Controller 1
Controller 2
Controller 2Controller 1
Channel 1
CH 3Channel 0
CH 0
Channel 2
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 3
Controller 1
Controller 2
Release latch and pull power supply
from the enclosure.Controller 2Controller 1
Channel 1
CH 3Channel 0
CH 0
Channel 2
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3 Using your thumb and fore finger, squeeze the power supply release latch
while pulling the power supply from the enclosure.
4 Remove the replacement power supply from the shipping container and
inspect for obvious damage. Save the packaging material.
5 Install the new power supply by sliding it into its open bay and ensuring it
seats completely and the release latch resets.
6 Re-connect the power cord.
Insert the power cord into the AC power cord module and secure it with the
power cord bale.
7 Turn the On/Off switch to the “On” position on the replacement power
supply.
NOTE: The front bezel Power Supply Status LED will return to a normal
state (steady green).
8 Using the packaging material from the replacement power supply, repackage
and return the failed power supply per your RMA instructions.
Replacing an AC Power Supply
Chapter 7 - Maintenance
imageRAID_160.book Page 127 Friday, November 14, 2003 4:14 PM
Replacing a DC Power Supply
1 Turn the On/Off switch to the “Off” position on the affected power supply.
If the dual power supply option is installed, the working power supply will
continue to supply sufficient power to keep the system operational while
you replace the failed power supply.
2 Disconnect the DC power cable. Squeeze the connector latches and pull the
power cable from the DC power cable module on the power supply.
Releasing the Power Supply
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 3
Controller 1
Controller 2
Controller 2Controller 1
Channel 1
CH 3Channel 0
CH 0
Channel 2
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Channel 3
Controller 1
Controller 2
Release latch and pull power supply
from the enclosure.Controller 2Controller 1
Channel 1
CH 3Channel 0
CH 0
Channel 2
Replacing a DC Power Supply 127
Chapter 7 - Maintenance
128
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3 Using your thumb and fore finger, squeeze the power supply release latch
while pulling the power supply from the enclosure.
4 Remove the replacement power supply from the shipping container and
inspect for obvious damage. Save the packaging material.
5 Install the new power supply by sliding it into its open bay and ensuring it
seats completely and the release latch resets.
6 Re-connect the DC power cable. Insert the power cable connector into the
DC power cable module. It secures when the connector’s latches reset.
7 Turn the On/Off switch to the “On” position on the replacement power
supply.
NOTE: The front bezel Power Supply Status LED will return to a normal
state (steady green).
8 Using the packaging material from the replacement power supply, repackage
and return the failed power supply per your RMA instructions.
Replacing a DC Power Supply
Chapter 7 - Maintenance
imageRAID_160.book Page 129 Friday, November 14, 2003 4:14 PM
Replacing a Disk Drive
WARNING: To prevent operating failure or damage, observe the following:
Establish a ground for yourself by using the wrist grounding strap, or
by touching the metal chassis prior to handling or installing the
drives.
NOTE: There is no need to power Off the enclosure or the host computer
system. The drives are hot-swappable. Be careful of the “P-factor” effect
when removing a disk drive, which is the twisting of the drive in your
hand as a result of the spinning disk. Allow the drive to completely spin
down before removing it. Do this by pulling the drive slightly from its
locked position and allowing it to spin down, then remove the drive.
1 Identify the failed disk drive using the Drive Status LED. Refer to
“Troubleshooting” on page 109 and “Drive LEDs” on page 91.
2 Remove the front bezel.
3 Grasp the drive carrier handle and pull the disk drive from the enclosure.
Removing/Installing the Disk Drive
Sta tus andAct iv i t y LEDLi teP ipe
Tens ion C l ips
DiskDr ive
Dr ive Car r ie rLock
Car r ie r
Replacing a Disk Drive 129
Chapter 7 - Maintenance
130
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The drive carrier has tension clips which ensures that the drive fits very tight.
It requires some force to remove or install the drive.
4 Remove the replacement disk drive from its shipping container and remove
the anti-static protection packaging.
Inspect the drive for obvious damage. Save the packaging material.
5 Install the replacement disk drive.
a Align the drive carrier with the rail grooves in the drive bay.
b Ensure that the drive seats completely. The drive carrier tension clips
ensure that the disk drive fits very tight, so it requires some force to push
the drive into its bay.
Installing the Disk Drive
6 Re-install and secure the front bezel. Using a Phillips screwdriver, rotate the
fasteners clockwise one-quarter turn to lock.
7 Using the packaging materials from the replacement disk drive, repackage
the failed drive and return it per your RMA instructions.
Replacing a Disk Drive
Chapter 7 - Maintenance
imageRAID_160.book Page 131 Friday, November 14, 2003 4:14 PM
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card
WARNING: The SAF-TE Disk I/O or SCSI SAF-TE Cluster card is NOT HOT
SWAPPABLE. You must POWER DOWN the storage system to
replace this card.
1 Power down the storage enclosure, refer to “Powering Off the Storage
System” on page 80.
2 Locate the faulty SAF-TE Disk I/O or SCSI SAF-TE Cluster card.
3 Disconnect the SCSI data cables attached to the faulty card.
4 Loosen the two thumb screws that secure the card.
SAF-TE Disk I/O Card or SCSI SAF-TE Clustering Card
5 Using the handle, gently pull the card from the enclosure.
6 Note the position of the jumpers and the switch settings on the faulty card.
7 Remove the new replacement SAF-TE Disk I/O or SCSI SAF-TE Cluster card
from the shipping container and inspect for obvious damage. Save the
packaging materials.
8 Set the jumpers and switches to match the faulty card being replaced.
9 Insert the replacement card by aligning it into the rail guides and pushing the
card until it fully seats.
Tighten the two thumb screws. Do not overtighten the screws.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
RD
A0
1 2 3 4 5 6 7 8
A1
S0
S1
BD
DL
RM
UP
Channel 2Termination Jumper
Channel 1Termination Jumper
Channel 1
Channel 2
DOWN
Confi
gurat
ion1
Confi
gurat
ion2
RAID
Spare
1Sp
are2
BAUD
Rate
Selec
t
Delay
Drive
Start
Remote
Drive
Start
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card 131
Chapter 7 - Maintenance
132
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Re-installing the SAF-TE Disk I/O Card or SCSI SAF-TE Clustering Card
10 Re-connect the SCSI data cables to the replacement SAF-TE Disk I/O or SCSI
SAF-TE Cluster card.
11 Power-on the enclosure. Refer to “Powering On the Storage System” on
page 80.
12 Using the packaging materials from the replacement card, repackage the
failed card and return it per your RMA instructions.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP7
ADD JUMPER
TO DISABLE
TERMINATION
JP8
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
ADD JUMPER
TO DISABLE
TERMINATION
CHANNEL -1
CHANNEL -2
Channel 1
Channel 2Controller 1
Controller 2
Controller 2Controller 1
Channel 1
CH 0
Replacing the SAF-TE Disk I/O or SCSI SAF-TE Clustering Card
Chapter 7 - Maintenance
imageRAID_160.book Page 133 Friday, November 14, 2003 4:14 PM
Replacing the Host SCSI I/O Card
WARNING: The Host SCSI I/O card is NOT HOT SWAPPABLE. You must POWER
DOWN the storage system to replace this card.
1 Power down the storage enclosure, refer to “Powering Off the Storage
System” on page 80.
2 Locate the faulty Host SCSI I/O card. Refer to “Troubleshooting” on page 109
for information on identifying the suspect card.
3 Disconnect the SCSI data cables attached to the faulty Host SCSI I/O card.
4 Loosen the two thumb screws that secure the card.
Host SCSI I/O Card
5 Using the handle, gently pull the Host SCSI I/O card from the enclosure.
6 Note the position of the jumpers on the faulty card.
7 Remove the new replacement Host SCSI I/O card from the shipping
container and inspect for obvious damage. Save the packaging materials.
8 Set the jumpers to match that of the faulty card being replaced.
9 Insert the replacement card by aligning it into the rail guides and pushing the
card until it fully seats.
Tighten the two thumb screws. Do not overtighten the screws.
JP1 ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Termination Jumpersfor Host Channels 0 and 3
Channel 0
Channel 3
I/O
Replacing the Host SCSI I/O Card 133
Chapter 7 - Maintenance
134
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Re-installing the Host SCSI I/O Card
10 Re-connect the SCSI data cables to the replacement Host SCSI I/O card.
11 Power-on the enclosure. Refer to “Powering On the Storage System” on
page 80.
12 Using the packaging materials from the replacement card, repackage the
failed card and return it per your RMA instructions.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
CH 3
CH 0
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Controller 1
Controller 2
Controller 2Controller 1
Channel 1
Channel 2
Replacing the Host SCSI I/O Card
Chapter 7 - Maintenance
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Replacing a imageRAID Controller
NOTE: The imageRAID Controller is hot swappable.
1 Identify and locate the failed imageRAID Controller. Refer to
“Troubleshooting” on page 109.
imageRAID Controller 1 is the lower controller and imageRAID Controller 2 is
the upper controller.
Component Location
2 Remove the Controller Cover plate. Loosen the four thumb screws and pull
the plate from the enclosure.
3 Remove the faulty imageRAID Controller.
Pull out on the two latches that secure the controller. Using the latches as
handles, carefully pull the controller from the enclosure.
4 Install the new replacement imageRAID Controller into the enclosure. Secure
the controller by pressing the latches until the lock into place.
JP7
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP6
JP5
CNFG 1CNFG 2RAID
SPARE 1SPARE 2
BAUD SELDLY STRT
RMT STRT
JP8ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
CHANNEL -1
CHANNEL -2
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
JP1
ADD JUMPER
TO DISABLE
TERMINATION
ADD JUMPER
TO SUPPLY
TERM POWER
JP3
JP2JP4
Controller 2Controller 1
ControllerCover Plate Optional Dual
SCSI-to-SCSIimageRAID Controllers
Channel 1
CH 3
CH 3CH 0
CH 0
Channel 2
Replacing a imageRAID Controller 135
Chapter 7 - Maintenance
136
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5 Access the AdminiStor software or the Disk Array Administrator software
using the VT-100 terminal; verify the replacement imageRAID Controller has
the correct firmware.
NOTE: Active-Active and Active-Passive dual imageRAID Controller require
the same version firmware on both controllers.
6 (Active-Active Mode) Access the AdminiStor software or the Disk Array
Administrator software using the VT-100 terminal; relinquish the partner
controller.
7 Using the packaging materials from the replacement controller, repackage the
failed controller and return it per your RMA instructions.
Replacing a “Killed” Controller When in Active-Active/Active-Passive Mode
If one controller detects that the other has a problem, it will kill it. The system
will log an event. If it is determined that the controller has a permanent failure,
then it must be replaced. Simply replace the defective controller and ensure that
the firmware on it is at the same level as the surviving controller. If required,
upload the correct firmware.
The new controller will complete its boot cycle and go to an online status.
Replacing a “Killed” Controller When in Active-Active/Active-Passive Mode
Chapter 7 - Maintenance
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Replacing the Enclosure
WARNING: Printed circuit board components are sensitive to electrostatic
discharge. To prevent operating failure or damage, observe the
following: Establish a ground for yourself by using a wrist grounding
strap, or by touching the metal chassis prior to handling or installing
a printed circuit board component.
1 Remove your replacement enclosure from the shipping container and inspect
the shipment. Save the packaging material.
2 Power down the host computer and the storage enclosure(s).
Refer to the procedures described to power down the host computer system
in your user’s guide and “Powering Off the Storage System” on page 80 for
the enclosure.
NOTE: Mark or make a notation of the location of the data cables prior to
disconnecting or removing these items. To facilitate correct
installation, you may want to tag the cables appropriately.
3 Disconnect the SCSI data cables and power cords from the faulty storage
enclosure.
4 Remove the front bezel. Refer to “Removing the Front Bezel” on page 121 for
procedures to properly remove the bezel.
5 Remove each power supply. Refer to “Replacing an AC Power Supply” on
page 125 or “Replacing a DC Power Supply” on page 127.
6 Remove the cooling fan module.
7 If applicable, remove each imageRAID Controller, noting its position. Again,
you may wish to tag the controllers for proper installation. Refer to
“Replacing a imageRAID Controller” on page 135.
8 Remove the SAF-TE Disk I/O or SCSI SAF-TE Cluster card and if applicable
remove the Host SCSI I/O cards.
Note the position of the jumper settings and switch settings.
Replacing the Enclosure 137
Chapter 7 - Maintenance
138
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9 Remove the defective storage enclosure.
a For Rack Installations. Reverse the installation procedures in Chapter 3,
“Installing the Storage System Enclosure into the Rack Cabinet” on
page 36.
OR
b For Deskside Tower Installations. Reverse the installation procedures in
Chapter 3, “Installing the Storage System into the Tower Stand” on
page 39.
10 Install the replacement storage enclosure.
a For Rack Installations. Follow the installation procedures in Chapter 3,
“Installing the Storage System Enclosure into the Rack Cabinet” on
page 36.
OR
b For Deskside Tower Installations. Follow the installation procedures in
Chapter 3, “Installing the Storage System into the Tower Stand” on
page 39.
11 Re-install the SAF-TE Disk I/O or SCSI SAF-TE Cluster card and if applicable
the Host SCSI I/O cards.
Set the jumper settings and switch setting to match those on the cards being
replaced.
12 Re-install the power supplies. Refer to “Replacing an AC Power Supply” on
page 125 or “Replacing a DC Power Supply” on page 127.
13 Re-install the cooling fan module.
14 If applicable, re-install the imageRAID Controllers in their proper slot
position (Controller 1 lower slot and Controller 2 upper slot). Refer to
“Replacing a imageRAID Controller” on page 135.
WARNING: Carefully seat the controller’s connector. The connector is
sensitive to alignment due to the number of pins in the
connector. Secure the controller by latching the latches.
Replacing the Enclosure
Chapter 7 - Maintenance
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15 Reconnect the SCSI data cables and power cords. Refer to the notations made
prior to removing the cables for their proper connection location.
16 Power on the storage enclosure(s) and then the host computer(s). Refer to
“Powering Off the Storage System” on page 80.
17 Verify that all systems are operating normally.
18 Access the AdminiStor software or the Disk Array Administrator software
using a VT-100 terminal; verify the replacement imageRAID Controller has
the correct firmware.
NOTE: Active-Active and Active-Passive dual imageRAID Controllers require
the same version firmware on both controllers.
19 Using the packaging materials from the replacement storage enclosure,
repackage and return the defective enclosure per your RMA instructions.
Replacing the Enclosure 139
Chapter 7 - Maintenance
140
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Replacing the Enclosure
Appendix A
imageRAID_160.book Page 141 Friday, November 14, 2003 4:14 PM
Technical Information
Specifications
Technical Specifications for the imageRAID SCSI Series Storage System
Operating Environment Operating Non-Operating
+40°F to +95°F (+5°C to +35°C)-4°F to +158°F (-20°C to +70°C)
Relative Humidity Operating/Non-Operating 5% - 95% (non-condensing)
Power Requirements 100 - 240 VAC (auto-sensing)3.0 Amperes (maximum)50-60 Hz2 x 350 Watts
Dimensions (HxWxD) 3.47" x 17.65" x 20.25"
Weight (w/2 power supplies) 38.55 lbs w/o drives58.00 lbs with twelve drives
Altitude -200 to 10,000 feet
Number of Drives Supported 12 per enclosure
Total Capacity 876 gigabytes (73 GB Drives)
Host Interface Ultra320/160 SCSI
Drive Interface SCA-80 Ultra320/160 SCSI
I/O Interface RS-232 (Power Supply, Temperature, and Fan monitoring)
Electromagnetic Emissions Requirements (EMI) FCC, Part 15, Class A CISPR 22 EN55022-AVCCI, BSMI, C-TICK
141
Appendix A - Technical Information
142
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Safety Requirements(in compliance with)
CAN/CSA C22.2 #60950-00UL 60950 3rd EditionCB IEC 60950 Edition 3
CE Compliance (EMC) 89/336/EEC EMC Directive
Shock Operating Non-Operating
1.0 G, 2 - 50 ms20.0 G, 2 - 20ms
Vibration Operating Non-Operating
5 - 500 Hz, 0.25 G (pk to pk)5 - 500 Hz, 1.0 G (pk to pk)
SCSI imageRAID Controller (JSS122)
Onboard CPU Mobile Pentium II 333 MHz, 256-KB on-chip L2 cache
Host/device data rate 160-MB/sec Ultra160 SCSI
Host interface channels Two 160-MB/sec Ultra160 SCSI Channel (1x3 or 2x2), the default is two channels
Device interface channels Two or three 160-MB/sec Ultra160 SCSI device channels; the default is two channels
SCSI protocol Narrow (8-bit) or Wide (16-bit): Fast (20MB/sec), Ultra (40MB/sec), Ultra2 (80MB/sec), Ultra160 (160MB/sec)
Advanced RAID features Active-active, host-independent failover/failback in the 2x2 configuration
Write-back data cache memory bus, 800 MB/sec bandwidth
On-line capacity expansionUp to 24 independent logical arrays per subsystemSpare pooling and dedicated spares; array verificationController/drive hot swap supportedArray status monitoring; adjustable stripe width;
automatic sector remappingUser-settable priority for array Reconstruct, Verify, Create,
and Expand operationsRAID levels 0, 1, 3, 4, 5, 10, 50
Advanced hardware features 64 MB to 512 MB, PC-133 compatible SDRAM DIMM, ECC protected
16 MB ECC protected onboard SDRAM processor memory
2 MB onboard Flash memory for upgradable firmwareIntegrated Nickel Metal Hydride (NiMH) cache battery
backup interface
Technical Specifications for the imageRAID SCSI Series Storage System
Specifications
Appendix A - Technical Information
imageRAID_160.book Page 143 Friday, November 14, 2003 4:14 PM
Advanced SCSI features Full backward SCSI compatibility70 simultaneous commands and Command Queuing
supportedReserve/Release (multihost ready, up to 15 initiators with
single controller)Ultra160 SCSI for data transfer up to 160 MB/secUltra160 SCSI connection for up to 15 devices per
channel (14 in active-active mode)Domain validation and CRC data protection with Ultra160
Configuration and management AdminiStor or RS-232 serial interface to ANSI terminal or terminal emulator
Performance statistics monitoring; event logging, rebuild, and verify utilities
SAF-TE and SMART environmental monitoring supportAdminiStor support
Board form factor 4.25 in x 9.0 in PCB outline (10.80 cm x 22.86 cm)1.1 in (2.79 cm) total height with unbuffered DIMM, 1.2 in (3.05cm) with registered DIMM
Backplane connector 376 I/O pin AMP Z-Pack HM series
Power requirements +5.0Vdc, 6.0A typical, 8.0A max, ±5% input tolerance+12.0Vdc, 0.2A max (normal operation), 0.6A max
(battery charging), ±10% input tolerance
Battery backup 3-cell NiMH Battery Pack, with integrated thermistor and overcurrent fuse.
Temperature Normal Degraded Non-Operating
+5oC to +45oC0oC to +5oC and +45oC to +50oC-40oC to +100oC
Humidity Operating Non-Operating
10% to 85% noncondensing5% to 90% noncondensing
Air flow 10.0 cubic-ft/min. (CFM)
SCSI imageRAID Controller (JSS122)
Specifications 143
Appendix A - Technical Information
144
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Specifications
Appendix B
imageRAID_160.book Page 145 Friday, November 14, 2003 4:14 PM
Port Information
This appendix contains pin signal information about the connectors on the SAF-TE
Disk I/O card, SCSI SAF-TE Cluster card, and Host SCSI I/O card, and RS-232
Service ports.
VHD/CI SCSI Connectors
On each SAF-TE Disk I/O, SCSI SAF-TE Cluster card, and Host SCSI I/O card are
two VHD/CI SCSI port connectors. These connectors provide the input/output
interface from the storage enclosure bus to the host system.
VHD/CI Connector
VHD/CI Connector Pin Signals
Connector P1 Connector P2
Signal Name Pin Number Signal Name Pin Number
+DB(12) 1 +DB(12) 1
+DB(13) 2 +DB(13) 2
+DB(14) 3 +DB(14) 3
+DB(15) 4 +DB(15) 4
+DB(P1) 5 +DB(P1) 5
1 34
35 68
145
Appendix B - Port Information
146
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+DB(0) 6 +DB(0) 6
+DB(1) 7 +DB(1) 7
+DB(2) 8 +DB(2) 8
+DB(3) 9 +DB(3) 9
+DB(4) 10 +DB(4) 10
+DB(5) 11 +DB(5) 11
+DB(6) 12 +DB(6) 12
+DB(7) 13 +DB(7) 13
+DB(P0) 14 +DB(P0) 14
GROUND 15 GROUND 15
DIFFSENS 16 DIFFSENS 16
TERMPWR 17 TERMPWR 17
TERMPWR 18 TERMPWR 18
RESERVED 19 RESERVED 19
GROUND 20 GROUND 20
+ATN 21 +ATN 21
GROUND 22 GROUND 22
+BSY 23 +BSY 23
+ACK 24 +ACK 24
+RST 25 +RST 25
+MSG 26 +MSG 26
+SEL 27 +SEL 27
+C/D 28 +C/D 28
+REQ 29 +REQ 29
+I/O 30 +I/O 30
+DB(8) 31 +DB(8) 31
+DB(9) 32 +DB(9) 32
+DB(10) 33 +DB(10) 33
+DB(11) 34 +DB(11) 34
-DB(12) 35 -DB(12) 35
-DB(13) 36 -DB(13) 36
-DB(14) 37 -DB(14) 37
-DB(15) 38 -DB(15) 38
-DB(P1) 39 -DB(P1) 39
-DB(0) 40 -DB(0) 40
-DB(1) 41 -DB(1) 41
-DB(2) 42 -DB(2) 42
-DB(3) 43 -DB(3) 43
-DB(4) 44 -DB(4) 44
VHD/CI Connector Pin Signals
Connector P1 Connector P2
Signal Name Pin Number Signal Name Pin Number
VHD/CI SCSI Connectors
Appendix B - Port Information
imageRAID_160.book Page 147 Friday, November 14, 2003 4:14 PM
-DB(5) 45 -DB(5) 45
-DB(6) 46 -DB(6) 46
-DB(7) 47 -DB(7) 47
-DB(P0) 48 -DB(P0) 48
GROUND 49 GROUND 49
GROUND 50 GROUND 50
TERMPWR 51 TERMPWR 51
TERMPWR 52 TERMPWR 52
RESERVED 53 RESERVED 53
GROUND 54 GROUND 54
-ATN 55 -ATN 55
GROUND 56 GROUND 56
-BSY 57 -BSY 57
-ACK 58 -ACK 58
-RST 59 -RST 59
-MSG 60 -MSG 60
-SEL 61 -SEL 61
-C/D 62 -C/D 62
-REQ 63 -REQ 63
-I/O 64 -I/O 64
-DB(8) 65 -DB(8) 65
-DB(9) 66 -DB(9) 66
-DB(10) 67 -DB(10) 67
-DB(11) 68 -DB(11) 68
VHD/CI Connector Pin Signals
Connector P1 Connector P2
Signal Name Pin Number Signal Name Pin Number
VHD/CI SCSI Connectors 147
Appendix B - Port Information
148
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SAF-TE Service Port
A service port is provided to access the SAF-TE processors and firmware using a
standard null-modem cable. Through this RS-232 service port you can use a
VT-100 terminal or emulation such as HyperTerminal, to access the onboard
firmware for monitoring and maintenance, and firmware update operations.
SAF-TE Service Port Pin Signals
imageRAID Controller Service Ports
Also located below the I/O card slots are two imageRAID Controller service
ports. They provide the serial interface to each controller allowing for firmware
updates, and access to the firmware-based Disk Array Administration software
using VT-100 terminal or emulation such as HyperTerminal. They are labeled
“CTRL 1” and “CTRL 2.” Below is the pin signals for these ports.
imageRAID Controller Service Port Pin Signals
1
1 NC
2 Rx
3 Tx
4 NC
5 Gnd
6 NC
7 NC
8 NC
9 NC
Pin Number Signal Name
2 3 4 5
6 7 8 9
CTRL 1 CTRL 2
1
1 NC
2 Rx
3 Tx
4 NC
5 Gnd
6 NC
7 NC
8 NC
9 NC
Pin Number Signal Name
2 3 4 5
6 7 8 9
1
1 NC
2 Rx
3 Tx
4 NC
5 Gnd
6 NC
7 NC
8 NC
9 NC
Pin Number Signal Name
2 3 4 5
6 7 8 9
SAF-TE Service Port
Appendix B - Port Information
imageRAID_160.book Page 149 Friday, November 14, 2003 4:14 PM
Null-Modem Cable
This cable, used to connect a terminal to the SAF-TE service port or the
imageRAID Controller service ports, is a DB-9 (female) to DB-9 (female)
null-modem type. Below is a pin-out for this cable.
DB-9 to DB-9 Null-Modem Cable Pin Signals
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
Null-Modem Cable 149
Appendix B - Port Information
150
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DC Power Supply Connector Pinout
CAUTION: If the enclosure is connected to a DC power feed source that is not
within the designated -48VDC range, damage might occur to the unit.
A DC power cable is included with the 48VDC Power Supplies and is used to
connect to a DC power feed system.
NOTE: Use only the DC power cables provided with the system.
Before connecting the cable to the source, be sure the wiring has the correct pin
out as indicated below. The connectors are Molex t ype, plug P/N 50-84-1060 and
female socket P/N 02-08-1002.
DC Cable Wiring Signals
Top Left + 48 VDC
Top Right + 48 VDC
Middle Left - 48 VDC
Middle Right - 48 VDC
Lower Left GND
Lower Right GND
Pin Signal Name
RED RED48VDC 48VDC
BLACK BLACK-48VDC -48VDC
GREEN/YELLOW GREEN/YELLOWGND GND
DC Power Supply Connector Pinout
Appendix C
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Regulatory Information
Compliance Information Statement
We,
Fujitsu Europe Limited
Hayes Park Central
Hayes End Road
Hayes, Middlesex, England UB4 8FE
44-208-573-4444
declare under our sole responsibility that the product,
Type of Equipment: 12 Bay, Storage System Enclosure
Model Numbers: IRS-JBOD (imageRAID)
IRS-1U160xx-xx (imageRAID)
IRS-2U160xx-xx (imageRAID)
to which this declaration relates is in conformity with the Title 47 of the US Code
of Federal Regulations, Part 15 covering Class A personal computers and
peripherals.
Operation is subject to the following two conditions:
1 This device may not cause harmful interference, and
2 This device must accept any interference received, including interference that
may cause undesired operation.
151
Appendix C - Regulatory Information
152
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FCC Class A Radio Frequency Interference Statement
This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to Part 15 of the FCC rules. These limits are designed to
provide reasonable protection against harmful interference when the equipment
is operated in a commercial environment. This equipment generates, uses and
can radiate radio frequency energy, and if not installed and used in accordance
with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to
cause harmful interference in which case the user will be required to correct the
interference at his own expense.
nStor Technologies is not responsible for any interference caused by
unauthorized modifications to this equipment. It is the user’s responsibility to
correct such interference. You are also warned, that any changes to this certified
device will void your legal right to operate it.
WARNING: Drives and controller/adapter cards described in this manual should
only be installed in UL-listed and CSA certified computers that give
specific instructions on the installation and removal of accessory
cards (refer to your computer installation manual for proper
instructions).
ATTENTION: Les lecteurs et cartes contrôleurs décrits ici ne doivent être montés
que sur des ordinateurs homologués (UL et CSA) et livrés avec des
manuels contenant les instructions d’installation et de retrait des
accessoires. Reportez-vous au manuel d’installation de votre
ordinateur.
FCC Class A Radio Frequency Interference Statement
Appendix C - Regulatory Information
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Class A Taiwanese Statement
Class A Japanese Statement
CE Notice
Marking by the “CE” symbol indicates compliance of the device to directives of
the European Community. A “Declaration of Conformity” in accordance with the
above standards has been made and is available from nStor Technologies upon
request.
Class A Taiwanese Statement 153
Appendix C - Regulatory Information
154
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Power Cord Selection
� This enclosure is intended for indoor use only.
� This enclosure is intended to be plugged into a 6A branch circuit in
Europe.
� To select the proper power cord:
For 110 Volt Operation – Use a UL Listed/CSA Labeled cord set consisting of
a minimum 18 AWG, type SVT or SJT three conductor cord, terminating in a
molded connector body having an IEC CEE-22 female configuration on one
end and a molded-on parallel blade grounding type attachment plug rated
15A, 125V configuration (5 - 15P) at the other end.
For 230 Volt Operation (North America) – Use a UL Listed/CSA Labeled cord
set consisting of a minimum 18 AWG, type SVT or SJT three conductor cord,
terminating in a molded connector body having an IEC CEE-22 female
configuration on one end and a molded-on tandem blade grounding type
attachment plug rated 15A, 250V configuration (6 - 15P) at the other end.
For 230 Volt Operation (Europe) – Use a cord set marked “HAR”, consisting
of a H05VV-F cord that has a minimum 0.75 square mm diameter conductors
provided with an IEC 320 receptacle and a male plug for the country of
installation rated 6A, 250V.
NOTE: The enclosure automatically selects the proper settings for the input
voltage. Therefore, no additional adjustments are necessary to connect the
unit to any input voltage within the range marked on the drive.
� Das Laufwerk sollte nicht im Freien verwendet werden.
� In Europa, sollte das Laufwerk an einen 6A-Stromkreis angeschlossen
werden.
� Zur Wahl des korrekten Netzkabels beachten Sie bitte folgendes:
230V-Betrieb (Europa) – Verwenden Sie Netzkabel der Bezeichnung “HAR”
die H05VV-F-Kabel und einen Leitungsdurchmesser von mindestens 0,75
mm2 aufweisen. Verwenden Sie eine IEC 320-Buchse und einen für das
Installationsland passenden Stecker, der auf 6A und 250V gesichert ist.
Power Cord Selection
Index
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AAC Hot Swappable Power Supplies 4Active-Active Mode 26Active-Passive Mode 29Advanced hardware features 142Advanced RAID features 142Alarm Speaker 19, 92Annunciation LED Sample 96Attaching the Chassis Ears
Rack mount 38Tower 40
Attaching the Front Bezel 42Attaching the Power Cord Bales 43Attaching the Rails
Rack mount 37Tower 40
BBasic Connection Instructions
Topologies 63Battery 143Boot and POST Screens 83
CCabling DC Power Supplies 43CE Notice 153Channel Status LED 18, 90Clustering 32Commands Debug 107Communications parameters
Terminal program 82Compliance 151Component Identification 2Components
Channel Status LED 18, 90Cooling Fans 7
Drive Activity LEDs 92Drive Status LEDs 92Fan Status LED 18, 90Front Bezel 3Host SCSI I/O Card 13Power Supply 4Power Supply Status LED 18, 90Power-On LED 18, 90RAID Controllers 15SAF-TE Disk I/O Card 9SCSI SAF-TE Cluster Card 10Single Bus Module 14
ControllerProblems with 115
Controller Service Ports 16Cooling Fan Module 7Cooling Fans 7
DData Availability 32DC Cable Wiring Signals 150DC Hot Swappable Power Supplies 5DC Power Supply 5DC Power Supply Connector Pinout 150Dimensions 141Disk Array Administrator Software 82Disk Channel Error Codes 120Disk Channel Errors 119Disk Errors 118Drive Activity LEDs 92Drive Configuration
imageRAID - 12 Drives 54imageRAID - 24 Drives 56imageRAID - 36 Drives 59IRS-JBOD - 12 46IRS-JBOD - 24 51
155
156
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Drive LEDs 19, 91Drive Spin-up Mode 12Drive Status LED is illuminated amber 115Drive Status LEDs 92Drives Supported 141
EEMC 142EMI 141Enclosure Component Identification 2Enclosure Component Monitoring 89Enclosure Monitoring SAF-TE 99Error messages 117
FFails to power on 109Fan Speed Control 105Fan Status LED 18, 90Fan Status LED is illuminated 115FCC Radio Frequency Interference Statement 152Front Bezel 3Front Bezel LEDs 93
GGeneral 109
HHost Cabling 63
Active-Active Single Port 69Active-Passive Dual Port 74Single Bus Clustering 76Stand-Alone Dual Port 66Stand-Alone Single Port 64
Host SCSI Channel Problems 113Host SCSI I/O Card 13
Replacing 133
IimageRAID Controller (JSS122)
specifications 142imageRAID Controller Firmware 86imageRAID Controller ports 16imageRAID Controller Service Ports 148imageRAID Controllers 15Installation
Rack Cabinet 36Tower 39
Installing Disk Drives 41
Interface Transfer Rate 141Interpreting the LEDs 115IRS-1U160xx-xx 151IRS-2U160xx-xx 151IRS-JBOD 151IRS-JBOD Configuration 46, 51
JJapanese Statement
Class A 153
LLED
Channel Status 18, 90Fan Status 18, 90Power Supply Status 18, 90
LED Matrix 93
MMenu System 84Mirrored Operations 31Model Numbers 151
NNull-modem
Cable 149Null-Modem Cable 149
OOnboard CPU 142One-Touch Annunciation 95Operating Environment 141Operating Modes Overview 21
PPin outs
VHD Connector 145Pin Signals
Controller service port 148Null-modem cable 149SAF-TE Service Port 148VHDCI 145
POST Screen 83Power Cord Bales 43Power Cord Selection 154Power Requirements 141Power Supply 4
DC 5
Index
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Power Supply Status LED 18, 90Power Suppy Status LED is illuminated 115Power System 4Powering Off
Storage System 80Powering On
Storage System 80Power-On LED 18, 90Product Identification v
RRack Cabinet Installation 36RAID Controllers 15Relative Humidity 141Removing the Front Bezel 121Replacing a DC Power Supply 127Replacing a Disk Drive 129Replacing a Down Controller in Active-Active/
Active-Passive Mode 136Replacing an AC Power Supply 125Replacing the Cooling Fans 123Replacing the Enclosure 137Replacing the Host SCSI I/O Card 133Replacing the imageRAID Controller 135Replacing the SAF-TE Disk I/O Card 131RS-232 Service Ports 16
SSAFTE Commands Debug 107SAF-TE Disk I/O Card 9
Replacing 131SAF-TE Firmware 101SAF-TE RS-232 Service Port 148SAF-TE Service Port 16SCSI Bus Hangs 110, 111SCSI Device Channel Problems 113SCSI protocol 142SCSI SAF-TE Clustering Card
Replacing 131Securing the Chassis
Tower 40Sense Key Descriptions 118Service Ports 16Single Bus Module 14Specifications
imageRAID IRS-1U160 enclosure 141imageRAID IRS-2U160 enclosure 141imageRAID IRS-JBOD enclosure 141
SSCSI SAF-TE Cluster Card 10Stand-Alone Mode 23Status Indicator LEDs 18, 90
TTaiwanese Statement
Class A 153Technical Specifications 141Terminal screen problems 112Theory 21Tower Stand 39Troubleshooting
Common Problems 115Interpreting the LEDs 115SCSI BIOS hangs 110SCSI Bus Problems 109SCSI ID conflict 110
UUnlocking the Front Bezel 121Updating imageRAID Controller Firmware 86Upgrades 79Uploading Firmware 101
VVHD SCSI connectors 145VHD/CI SCSI Connectors 145VHDCI SCSI Connectors 145
WWarning events 116Weight 141
Index 157
158
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Index
imageRAID_160.book Page 159 Friday, November 14, 2003 4:14 PM
imageRAID_160.book Page 160 Friday, November 14, 2003 4:14 PM
www.fel.fujitsu.com 91-9-94632001 (Y1)November 2003
Fujitsu Europe LimitedHayes Park CentralHayes End RoadHayes, Middlesex, England UB4 8FE44.208.573.4444
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