IBM SAN Volume Controller 2145-CG8 Hardware Maintenance Manual page 119

Perform the following steps to remove or replace the service controller cable.
1. Read the safety information to which "Preparing to remove and replace parts" on page 26 refers.
2. Follow the procedure in MAP 5350 in the IBM System Storage SAN Volume Controller Troubleshooting
Guide to verify that the node data is mirrored and synchronized, and that there are no dependent
volumes before turning off the node.
3. Slide the node out on its slide rails to the fully extended position.
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.
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: If you must remove the node from the rack to work on it, perform the following procedure
to remove all cables and remove the node from the rack:
a. 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.
b. 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.
6. Remove the top cover. See "Removing the top cover" on page 77.
7. Remove the service controller from the SAN Volume Controller 2145-CG8 or 2145-CF8, as described in
"Removing the 2145-CG8 or 2145-CF8 service controller" on page 85.
8. Remove or replace the USB service-controller cable.
To remove the USB service-controller cable, perform the following procedure:
a. Disconnect the USB cable ( 1 in Figure 76) from the service controller ( 2 ).
Figure 76. Removing and replacing the USB cable in the SAN Volume Controller 2145-CG8 or 2145-CF8 service
controller
1 USB cable
2 USB connector
b. Locate the USB connector ( 1 in Figure 77 on page 90) on the left side of the SAN Volume
Controller 2145-CG8 or 2145-CF8.
1
2
Chapter 2. Removing and replacing parts
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