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7/25/2019 1.Introduction to Storage Infrastructure
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Introduction to Stora e
1
Infrastructure
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Typical SAN Setup
LINUX Servers with Qlogic/ Emulex HBAs
SunFire V240with Qlogic HBAs
Windows server withQlogic / Emulex HBAs
McData / CNT switch
4
IBM FastT200
FC-SANBrocade SAN Switch (3200) Brocade SAN Switch (3800)
Tape Library StorageTek /
QuantumLSI ProFibre JBOD
Serial ATA
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Interconnects
LINUX Servers with Qlogic/ Emulex HBAs
SunFire V240with Qlogic HBAs
Windows server withQlogic / Emulex HBAs
McData / CNT switch
6
IBM FastT200
FC-SANBrocade SAN Switch (3200) Brocade SAN Switch (3800)
Tape Library StorageTek /
QuantumLSI ProFibre JBOD
Serial ATA
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C BA
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Storage Networking Components cables & connectors
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Fiber Channel Copper cable: Uses electronicpulses to transmit Information down copper lines.
Fiber Optic Cable :Uses light pulses to transmitInformation down fiber lines.
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C BA
Storage Networking Components cables & connectors
Single-mode fiber: Single-mode (SM) fiberallows for only one pathway, or mode, of
light to travel within the fiber. The core sizeis typically 8.3 m. (Designed for longertransmission distances up to 10km)
Multimode fiber: Multi-mode (MM) fiberallows more than one mode of light.
Common core sizes are 50 and 62.5 m.(Designed for short transmission distances
8
up to 2km)
Note: Impossible to distinguish betweensingle-mode and multi-mode fiber with thenaked eye unless color coding schemes is
followedorange - multi-mode
yellow - single-mode.
Reference: http://www.arcelect.com/fibercable.htm
http://www.fiber-optics.info/articles/fiber-types.htm
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Storage Networking Components cables & connectors
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SC: The duplex SC connector is a low
loss, push/pull fitting connector. Offersexcellent packing density, and its push-pull design resists fiber end face contact
damage during connection.Use: Most GBICs and GLMs use industry
standard Subscriber Connector (SC)
connectors
Reference: http://www.fiber-optics.info/articles/connector-care.htm
LC The type of connectors which pluginto SFF or SFP devices are called LC
connectors. (Advantage over SC smallsize).
Use: Most of the 2 Gb/s devices will beusing the SFF or SFP technology, and
therefore, use Lucent Connector
(LC)connectors.
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C
AA
Storage Networking Components cables & connectors
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( & A)
A C ( A A)
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( )
C
Storage Networking Components cables & connectors
GBICs, GLMs, and SFPsThese different components carry out the same task.
The task is that of converting electrical signals on HBAs, switches, and other
building blocks to and from optical or electrical signals for transmission over the
Fibre Channel media. The format of the devices is, however, different.
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, C.
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Storage Networking Components cables & connectors
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Storage Networking Components cables & connectors
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Storage Networking Components - HBA
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, C BA, C C C
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Storage Networking Components - HBA
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,
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Storage Networking Components Bridge and Gateway
Advantages of SAN Data Gateway versus a
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Switch Defers or completely avoids the high entry
cost of a switch.
Smaller configurations with fewer deviceslower administration cost for customer and
lower service/support cost for manufacture. Interoperability issues with switches: fabric
support is limited, resource sharingrequires middleware
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C , C C (C) . C, .
C ( C ).
Storage Networking Components Switches
Typical fabric services provided
by a switch
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Name services
Fabric control
Time services
Automatic discovery and
registration of host and storagedevices
Rerouting of frames, ifpossible, in the event of a portproblem
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C
, .
Various FC switch offerings
support both fabric and/or loop
connections. As the number of
devices increases, multiple
switches can be cascaded for
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expanded access.
Manufacturer: Cisco, Brocade,McData, Qlogic
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Reference:
www.snia.org/education/tutorials/2007/spring/storage/Storage_Protocol_Analyzers.pdf
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