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The Marriage of Virtual Systems with Virtual Storage
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VMware Infrastructure 3VMware Infrastructure 3Key Features Enabled by Networked “SAN” StorageKey Features Enabled by Networked “SAN” Storage
VMotion– Online migration of running
virtual machines without interruption
DRS - Distributed Resource Scheduling
– Global scheduler optimizes resource usage based on current workloads
VMware HA– Automated rehosting and restart
of virtual machine in case of server failure
Consolidated Backup– Centralized file level backup with
no host agents
VMware Infrastructure 3
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VMware Infrastructure 3 VMware Infrastructure 3 iSCSI SAN IntegrationiSCSI SAN Integration
Native initiators– Software initiator
NIC teaming Max of 16 GbE ports
− Divided up across client access, storage access, and Vmotion
– QLogic QLA4010 Active/passive multipathing SAN Boot 2x QLA4010
– Target discovery– CHAP Authentication
Host OS
Virtualization Layer
Guest OS
iSCSI SAN
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Forrester Recommends IP StorageForrester Recommends IP Storage
Forrester Recommendations:
“Choose IP-based storage over fibre channel when possible”
“Firms should evaluate IP-based storage first when deploying new or upgrading existing networked storage”
“Choose IP-based storage to reduce cost and complexity”
iSCSI is the only storage protocol recommended by Forrester for all Enterprises
Forrester Claims:
“EqualLogic holds its own as an iSCSI storage systems vendor”
“Ethernet and TCP/IP networking technologies are ubiquitous in firms today”
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iSCSI Connections Will Exceed FC in 2008iSCSI Connections Will Exceed FC in 2008
iSCSI and FC Host Connections
0
200,000
400,000
600,000
800,000
1,000,000
1,200,000
1,400,000
1,600,000
1,800,000
2003 2004 2005 2006 2007 2008 2009
Units
FC Server Attachments
iSCSI Server Attachments
Source: Gartner Presentation, “The Future of iSCSI SANs” by Robert Passmore. June 2006
“Simplicity is the ultimate sophistication”– LEONARDO DA VINCI
“Simplicity is the ultimate sophistication”– LEONARDO DA VINCI
Presenting PS Series StoragePresenting PS Series Storage
Presenter: Chris Mojica
September 11th, 2006
July 2006
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iSCSI SANsiSCSI SANs
Utilizes iSCSI (standards-based IP technology)
Provides block level storage
Leverages the large installed base of Ethernet and IP networks
Enables storage to be accessed over LAN, MAN, or WAN environments
Provides an affordable infrastructure with connectivity up to 10 times less expensive than FC SANs
Utilizes existing IP knowledge base
Server
GbE Switch
Disk Array
Tape Library
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iSCSI Standard Brings iSCSI Standard Brings Interoperability to SANsInteroperability to SANs
Familiar technologies – now used together– Same SCSI commands – Over 20 years of SCSI
– Same network transport – Over 30 years of IP networking
– IETF RFCs: 3720, 3721, 3722, 3723
Servers (Initiators)iSCSI
Storage
(Targets)EthernetEthernet
Frame SCSISCSI
TCP/IPTCP/IP
PacketPacket
Multipath I/O Clusters Storage over distance HBAs
Complete OS support Boot from SAN Enterprise SAN backup Tape and disk vendors
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iSCSI – What is it?iSCSI – What is it?
iSCSI (Internet Small Computer System Interface) specifies a way to “encapsulate” SCSI commands in a TCP/IP network connection:
Explains how to extractSCSI commands and data
Provides information necessary toguarantee delivery
Contains “routing” informationso the message can find itsway through the network
SCSI commands and dataiSCSI Header
TCPHeader
IP Header
GigabitEthernet
Provides Link Addressing, large frame sizes, and flow control
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iSCSI in OperationiSCSI in Operation
iSCSI initiators issue SCSI “commands” to request services
iSCSI target services requests “Data” to requesting initiator
iSCSI transmits and receives block storage applications over TCP/IP networks by encapsulating SCSI commands into TCP and transporting them over the network via IP
Local Disk (C:)
HBA or NIC
DataVolume (F:) Data
Volume (G:)
ServeriSCSI Storage
iSCSI Target
iSCSI Initiator
Local Disk (C:)Data Volume (F:)Data Volume (G:)
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Accessing a Volume Using iSCSIAccessing a Volume Using iSCSI
To access a volume, a host needs only an industry-standard iSCSI initiator. Each major operating system supports an iSCSI initiator.
Host system access to a volume is through the group IP address and the iSCSI target for the volume.
After the initial iSCSI connection and authentication, the host is re-directed to a network connection that is optimal for performance (for example, a network interface on the member that contains the requested data).
Once connected, a volume appears as a SCSI disk that can be formatted with the operating system’s normal utilities.
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End-to-End Hardware ReliabilityEnd-to-End Hardware Reliability
Fully Redundant & Hot Swappable (5-9’s Availability)
Controllers Disk drives Fans & power supplies
High-end Components Three 1Gb network interfaces SATA II drives 2 GB battery-backed
mirrored memory
Enclosure Monitoring System Temperature Component status Disk drive health
Hotswap Drive Carriers
Dual Controllers
Dual Power Supplies
Dual Fans
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Comprehensive Data ManagementComprehensive Data ManagementAll-included at No Additional Cost or License FeesAll-included at No Additional Cost or License Fees
Basic Software Features Advanced Software Features
Instant on “set-up” manager
Group manager
Complete SAN virtualization
Rapid provisioning
RAID 5 / RAID 10 / RAID 50
Automatic RAID placement
Phone home
Enclosure Monitoring System
Automatic online storage pools
Auto-load balancing
Multi-way replication for disaster recovery
Multi-volume snapshots
Instant restore/cloning
Multi-path/IO support
Host integration tools
Array evacuation
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On Demand SAN ScalabilityOn Demand SAN Scalability
PS50E PS100E PS300E PS Storage Stack
SCALEABILITY
Add Controller
Flexible on- demand growth
Single Firmware Architechture | Completely Upgradeable
Upgrade DrivesPERFORMANCE
PS400E
1.75TB
Modular, all-inclusive design allows on demand capacity growth while maintaining a single point of management…regardless of scale or array type
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Easy Set-UpEasy Set-Up
20 Minute Installation
– Automatic RAID configuration
– Automatic sparing
– Multilevel security access control
No Server Software or Licensing Fees — Ever
Backup Servers
File Servers
Application
Servers
Shares
SQL
AD / DomShares
Shares
Backups
Backups
Free Space
PS Series Array
COMPREHENSIVE OS SUPPORT
Switched Gb Ethernet
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Seamless SAN ExpansionSeamless SAN ExpansionOn Demand Storage Growth
“Frameless” Design
Complete Modularity– Add disks
– Add arrays
– Remove arrays
Auto Load Balancing Across Entire SAN
No Application Downtime
No Manual Tuning Required
Switched Gb Ethernet
Shares
SQL
AD / DomShares
Shares
Backups
Backups
Free Space
Backup Servers
File Servers
Application
Servers
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Server and Storage Virtualization SolutionsServer and Storage Virtualization SolutionsSelf-Managing Storage Enhances Virtual InfrastructureSelf-Managing Storage Enhances Virtual Infrastructure
Customer Objectives:– Reduced server and storage capital
expense– Resource maximization across servers and
storage for maximum performance– Flexible movement of servers, storage and
applications across hardware platforms
Key applications:– Server consolidation– Business continuance– Hosted desktops– Development and test
Why EqualLogic:– Scale infrastructure without downtime– Simplify management of virtualized
infrastructure– Rapidly provision and deploy virtual servers– Protect and recover data quickly– Replicate servers and data stores for easy
disaster recovery
SwitchedGb Ethernet
PS Series Array
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SAN BootSAN BootEasier operations, Faster Restart of Services!Easier operations, Faster Restart of Services!
No local hard drive– Disk-less Server
Use iSCSI HBA or PXE– Configure BIOS to mount “boot”
volumes.– Looks like local SCSI disk to OS.– Install OS on iSCSI volume.– OS boots from iSCSI volume and
mounts it as “C:\” drive or “/” root disk.
Improved Data Protection
Fast Recovery
Better DR operationsSystem
Disk
iSCSI HBAor BIOS
Boot
SwitchedGb Ethernet
PS Series Array
DataVolume
DataVolume
Server
/ or C:\