Figure 5-1 Drive Loop Cabling For Systems With Two Enclosures - Silicon Graphics Total Performance 9300 User Manual

5: Cabling
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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
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
status module in the expansion enclosure. This creates a redundant drive loop
between the two enclosures (see Figure 5-1).
ESM A
Drive channel in
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
connectors on the new enclosure to the
channel out
the expansion enclosure directly beneath it (see Figure 5-2). Then connect the
cable from the left side RAID controller to the left-side
loop out
connector on the new expansion enclosure. The
first expansion enclosure should remain connected to the right-side RAID controller
drive loop connector.
drive channel in
connector on the right environmental
drive channel out
Controller A
Drive channel 1
1Gb 1Gb 2Gb 2Gb
0 0
Conflict Conflict
X10 X10 X1 X1
Tray Number Tray Number
Drive loop A
2Gb 2Gb
1Gb 1Gb
0 1
Conflict Conflict
X10 X10 X1 X1
Tray Number Tray Number
connector on the left
Controller B
Drive channel 2
Drive loop B
ESM B
Drive loop out
connectors of
drive channel in
drive channel in
connector on the
drive channel out
Controller
enclosure ID 00
Disk drive
enclosure ID 01
drive
drive
007-4644-001