IBM SAN Volume Controller 2145-CG8 Hardware Maintenance Manual page 157

4. When the node is completely turned off, remove the cable-retention brackets and disconnect the
power cables, as described in "Removing the cable-retention bracket" on page 34.
5. Optional: To make sure that you can replace all cables in the same ports from which they were
removed, label the port position of each Fibre Channel and Ethernet cable; then remove all cables
from the back of the node.
You can leave the Fibre Channel and Ethernet cables connected, if you are using the
cable-management arm and if you are not removing the node from the rack.
6. Optional: Remove the node from the rack and place it on a flat, static-protective surface. See
"Removing the SAN Volume Controller from a rack" on page 46.
You can perform most service actions when the node is fully extended from the rack on its slide
rails. If the location of the node in the rack is too high or too low to work comfortably, you can
remove the node from the rack.
7. Remove the service controller. See "Removing the service controller" on page 85.
8. Pull the disk drives and filler panels out of the node slightly to disengage them from the backplane.
See "Removing the disk drive" on page 110.
9. Remove the top cover. See "Removing the top cover" on page 77.
10. Remove fans 4, 5, and 6, as described in "Removing the SAN Volume Controller 2145-CG8 or
2145-CF8 fans" on page 239.
11. Disconnect all cables from the disk-drive backplane.
Note: You can also choose to disconnect the cables after removing the backplane from the brackets,
if that is easier for you.
The high-speed SAS cable and the boot-disk SAS cable are shown in Figure 113 on page 128.
The boot-disk cable is shown after disconnecting the cable from the disk controller so that you can
see the connectors more clearly.
Chapter 2. Removing and replacing parts
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