Locate a Faulty Fan Module

You must determine which fan module is faulty before you replace it.

1. Check to see if any System Service Required LEDs are lit or flashing.

   See Front Panel Components (Service).

2. In Oracle ILOM, check the health of the cooling system.

   -> show /System/Cooling
    /System/Cooling
   	Targets:
    	Properties:
    		health = OK
    		health_details = -
   ...
   ->

3. Verify that a fan module is faulty.

   For example, type:

   -> show faulty
   Target              | Property               | Value
   --------------------+------------------------+-------------------------------
   /SP/faultmgmt/0     | fru                    | /SYS/MB/FM0
   ...
   ->
   

   If a fan module is faulty, you will see /SYS/MB/FMx under the Value heading where x is 0 to 4.

   If a FRU value different from /SYS/MB/FMx is displayed, see Component Service Task Reference to identify which component is faulty.

4. Use the Oracle ILOM faultmgmt shell to identify the faulty component.

   See Identify Faulted Components.

   Check the Fault class and Description fields for more information.

5. Within the Oracle ILOM interface, verify the fan module speeds.

   -> show /SYS/MB/FMx/Fy/TACH value
    /SYS/MB/FM0/F0/TACH
    Properties:
    value = 3100.000 RPM
   ->

   where:

   • x is the fan module, 0 (left fan) to 4 (right fan).

   • y is the fan element, 0 (primary) or 1 (secondary).

6. If a fan module is faulty, write down which fan module is faulty, then replace it when the new one arrives.

   See Remove a Fan Module.

7. If you are unable to determine if a fan module is faulty, seek further information.

   See Detecting and Managing Faults.

Related Information

• Remove a Fan Module

• Verify a Fan Module

• Detecting and Managing Faults