User`s guide

LRC I/O Module Specifications
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LRC I/O Module Specifications
Table A-8 provides specifications for the LRC I/O module.
Table A-8 LRC I/O Module Specifications
Specification Value
Connectors 2 x SFP module LC optical, maximum cable length 300 m
1x SFP expansion port, maximum copper cable length 1 m
External FC-AL signal cables SGI dual-port HBAs: 25 m (82 ft)
Storage area network (SAN) and SGI single-port HBAs: maximum 100 m (328 ft)
optical (see Table A-10 for information on cables)
Drive interface 2 x FC-AL loops, connected internally to FCAL LRC I/O
Power dissipation 3 A @ 3.3 V
2 A @ 5 V
2 A @ 12 V
RAID levels 0, 1, 3, 5, and 0+1 (RAID level 6)
JBOD (RAID level 7)
LED Indicators Drive loop signal good - green
Host port 1 and 2 signal good - green
Cache active - green
RAID active - green
RAID fault - amber
ESI/LRC module fault LED - amber
Memory 512 MB maximum
Cache Selectable write-through or write-back
Read always enabled
Battery NiCad cache battery protects 512 MB data for up to 72 hours