Time And Items Required; Recording Power Supply And Fan Assembly Critical Information; Removing A Fan Assembly - IBM Storage Networking SAN128B-6 Installation, Service And User Manual

Replacing a fan assembly (hot-swap)
If your device is up and running with three fan assemblies, but one of them has failed, complete the
following steps.
1. Remove the old or failed fan assembly.
2. Insert the new fan assembly.
3. Verify the fan assembly status LED.
Replacing more than one fan assemblies (cold-swap)
If your device is up and running with all the three fan assemblies, but you want to replace more than one
of them, complete the following steps.
1. Shut down the device using the sysShutdown command.
2. Remove the old/failed fan assemblies.
3. Insert the new fan assemblies.
4. Power on the device.
5. Verify the fan assembly status LEDs.

Time and items required

Installing or removing and replacing a fan assembly should require less than five minutes to complete.
The following items are required to replace a fan assembly:
v New fan assembly (must have the same airflow direction as the fan assembly being replaced)
v #1 Phillips-head screwdriver

Recording power supply and fan assembly critical information

About this task
You can use the following commands to record the power supply and fan assembly configuration and
operations information:
v chassisshow
v fanshow
v psshow
v historyshow
v tempshow
v sensorshow
Refer to the Fabric OS Command Reference for output examples and descriptions.

Removing a fan assembly

About this task
Complete the following steps to remove a faulty fan assembly.
Procedure
1. To leave the device in service while replacing a fan assembly, verify that the other power supplies and
fan assemblies (the one not being replaced) have been powered on for at least four seconds and has a
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SAN128B-6 Installation, Service, and User Guide