Silicon Graphics Total Performance 9300, User Manual

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66 007-4644-001
5: Cabling
1. Connect the drive loops in the first two enclosures (see Figure 5-1). Starting with the
controller enclosure, connect an interface cable from the drive loop connector on the
left RAID controller module to the
drive channel in
connector on the left
environmental status module in the expansion enclosure.
2. Connect an interface cable from the drive loop connector on the right RAID
controller module to the
drive channel out
connector on the right environmental
status module in the expansion enclosure. This creates a redundant drive loop
between the two enclosures (see Figure 5-1).
Figure 5-1 Drive Loop Cabling for Systems with Two Enclosures
3. Connect additional drive enclosures to drive loops A and B by connecting the
drive
channel out
connectors on the new enclosure to the
drive channel in
connectors of
the expansion enclosure directly beneath it (see Figure 5-2). Then connect the
drive
loop out
cable from the left side RAID controller to the left-side
drive channel in
connector on the new expansion enclosure. The
drive channel out
connector on the
first expansion enclosure should remain connected to the right-side RAID controller
drive loop connector.
Drive loop A
Drive loop B
ESM A
Drive channel in
ESM B
Drive loop out
Disk drive
enclosure ID 01
1Gb 1Gb
X10 X10
Tray Number Tray Number
X1 X1
Conflict Conflict
2Gb 2Gb
0 1
Controller A
Drive channel 1 Controller B
Drive channel 2
Controller
enclosure ID 00
1Gb 1Gb
X10 X10
Tray Number Tray Number
X1 X1
Conflict Conflict
2Gb 2Gb
0 0