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NOTE: Although it is not a requirement for fault tolerance to house the primary and mirror
disk drives in separate FCDMs. the example configurations show FCDMs housing only primary
or mirror drives, mainly for simplicity in keeping track of the physical locations of the drives.
• “Two FCSAs, Two FCDMs, One IOAM Enclosure”
• “Four FCSAs, Four FCDMs, One IOAM Enclosure”
• “Two FCSAs, Two FCDMs, Two IOAM Enclosures” (page 65)
• “Four FCSAs, Four FCDMs, Two IOAM Enclosures” (page 66)
• “Daisy-Chain Configurations” (page 67)
• “Four FCSAs, Three FCDMs, One IOAM Enclosure” (page 69)
Two FCSAs, Two FCDMs, One IOAM Enclosure
This illustration shows example cable connections between the two FCSAs and the primary and
mirror Fibre Channel disk modules:
This table lists the FCSA group-module-slot-port (GMSP) and disk group-module-shelf-bay
(GMSB) identification for the factory-default system disk locations in the configuration of four
FCSAs, two Fibre Channel disk modules, and one IOAM enclosure:
Disk GMSB*FCSA GMSPDisk Volume Name
110.211.101110.2.1.1 and 110.3.1.1$SYSTEM (primary)
110.211.102110.2.1.1 and 110.3.1.1$DSMSCM (primary)
110.211.103110.2.1.1 and 110.3.1.1$AUDIT (primary)
110.211.104110.2.1.1 and 110.3.1.1$OSS (primary)
110.212.101110.2.1.2 and 110.3.1.2$SYSTEM (mirror)
110.212.102110.2.1.2 and 110.3.1.2$DSMSCM (mirror)
110.212.103110.2.1.2 and 110.3.1.2$AUDIT (mirror)
110.212.104110.2.1.2 and 110.3.1.2$OSS (mirror)
* For an illustration of the factory-default slot locations for a Fibre Channel disk module, see “Factory-Default Disk
Volume Locations for FCDMs” (page 61).
Four FCSAs, Four FCDMs, One IOAM Enclosure
This illustration shows example cable connections between the four FCSAs and the two sets of
primary and mirror Fibre Channel disk modules:
64 System Configuration Guidelines