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Figure 28. Drive enclosure environmental services monitor (ESM) board in and out ports
2. Connect the same first two drive enclosures to drive loop B, as shown in
Figure 29. Connecting two drive enclosures into redundant drive loop B
3. Connect additional drive enclosures to drive loops A and B, as shown in
®
28
™
IBM
TotalStorage
FAStT700 Fibre Channel Storage Server: Installation Guide
For the location of the ports on the drive enclosure ESM board, see Figure 28.
Out
In
In
ESM board
Figure 29.
Starting with the first drive enclosure, connect a fiber-optic cable from the In port
on the right ESM board to the Out port on the right ESM board in the second
(next) drive enclosure.
Last drive
enclosure
ESM boards
Loop A
Fibre Channel
cable
First drive
enclosure
Storage
server
In
ESM board
If you want to connect more drive enclosures into drive loops A and B, continue
with Step 3; otherwise, go to "Connecting a redundant drive loop to the
FAStT700 Storage Server" on page 30.
Figure 30 on page 29.
Starting with the second drive enclosure, connect each additional drive
enclosure into drive loops A and B in the same manner. Leave the In port on the
last drive enclosure in the loop and the Out port on the first drive enclosure
Drive enclosure
Out
Out
In
ESM board
Loop B
Fibre Channel
cable
Out
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