Recording fan assembly critical information
You can use the following commands to record the fan assembly configuration and operations
information:
•
chassisshow
•
fanshow
•
psshow
•
historyshow
•
tempshow
•
sensorshow
Refer to the Fabric OS Command Reference for output examples and descriptions.
Removing a fan assembly
Complete the following steps to remove a faulty fan assembly.
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
steady green LED.
Figure 39. Removing a fan assembly
1. Fan Assembly Unit
2. Fan Assembly Handle
2. Using a Phillips screwdriver, unscrew the captive screw.
3. Remove the fan assembly from the chassis by pulling the handle out and away from the chassis. The
fans in the other power supply will automatically switch to high speed to maintain adequate cooling.
Inserting a new fan assembly
The new fan assembly must have the same part number and airflow label (or lack thereof) as the fan
assembly already installed.
Complete the following steps to insert a new fan assembly into the chassis.
64 IBM Storage Networking SAN128B-7: SAN128B-7 Installation, Service, and User Guide