Attention: To ensure proper operation, replace a failed fan within 30 seconds.
5. If you are instructed to return the fan, follow all of the packaging instructions, and use any packaging
materials for shipping that are supplied to you.
Removing the SAN Volume Controller 2145-8A4 fans
Take precautions to avoid damage from static electricity. Wear an anti-static wrist strap and use a
static-protected mat or surface. For more information, see “Handling static-sensitive devices” on page xx.
Perform the following steps to remove a failed fan:
1. Turn off the node while ensuring that its data is mirrored and synchronized. See MAP 5350 in the
IBM System Storage SAN Volume Controller Troubleshooting Guide for more information.
2. Remove the cable-retention bracket and disconnect the power cable from the node. See “Removing the
cable-retention bracket” on page 34.
3. 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.
4. Remove the top cover. See “Removing the top cover” on page 77.
5. Reconnect the power cord and then turn on the node.
Attention: Operating the node for extended periods of time (more than 30 minutes) with the cover
removed might damage server components.
6. Determine which fan to replace by checking the LEDs on the system board. Each fan has an LED next
to it. A lit LED indicates the fan to replace.
7. Turn off the node and then disconnect the power cord again.
8. Remove the failed fan.
a. Disconnect the fan cable from the system board.
Note: Make a note of the routing of the fan cable to the connector. You will have to route the fan
cable the same way when you install the fan.
b. Grasp the top of the fan with your index finger and thumb and lift the fan out of the server.
Figure 239. Removing or replacing a fan in the SAN Volume Controller 2145-CG8 or 2145-CF8 node
Chapter 2. Removing and replacing parts 241
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