Locate a Faulty Fan Module

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

1. Consider your first step.
   • If you are at the switch, go to Step 2.
   • If you are remote to the switch, go to Step 4.
2. Check to see if the Service Action Required LED at the bottom front corner of the fan is on.

   See Front Panel LEDs.

3. Visually inspect the fan module Attention LEDs to see if any are on.

   See Fan Module LED.

   • If a fan module is faulty, replace it.

     Start at Remove a Fan Module.

   • If you cannot determine if a fan module is faulty, go to Step 4.
4. Access the Oracle ILOM CLI.

   See Accessing the SP.

5. Determine if a fan module has become problematic.

   -> show /System/Open_Problems
   Open Problems (1)
   Date/Time                 Subsystems          Component
   ------------------------  ------------------  ------------
   Thu Dec 17 05:18:44 2015  System              FMx (Fan Module)
    fault.chassis.device.fan.fail (Probability:100, UUID:0ebf1655-8700-c90e-fa53-ea6c3b2b25a0, Resource:/SYS/FMx, Part
    Number:N/A, Serial Number:N/A, Reference Document:http://support.oracle.com/msg/---)
   ->

   where x is 0 to 3.

   • If you see the word fan and Oracle ILOM target /SYS/FMx in the output, then replace that fan module.

     Start at Remove a Fan Module.

   • If you see a different component identified in the output, then service that component.

     See Open Problem Faults and Oracle ILOM Legacy Target Replaceable Components.

6. Display the health status of the cooling system.

   -> show /System/Cooling -t health
   Target                      | Property   | Value 
   ----------------------------+------------+------
   /System/Cooling             | health     | OK
   /System/Cooling/Fans/Fan_0  | health     | Service Required
   /System/Cooling/Fans/Fan_1  | health     | OK
   /System/Cooling/Fans/Fan_2  | health     | OK
   /System/Cooling/Fans/Fan_3  | health     | OK
   /System/Cooling/Fans/Fan_4  | health     | OK
   /System/Cooling/Fans/Fan_5  | health     | OK
   /System/Cooling/Fans/Fan_6  | health     | OK
   /System/Cooling/Fans/Fan_7  | health     | OK
   ->

   If any fan's health has a value other than OK, replace that fan module. See Oracle ILOM /System Target Replaceable Components to determine which fan module to replace. Then, start at Remove a Fan Module.

7. Within the Oracle ILOM interface, display the fault state of the fan modules.

   -> show /SYS -t fault_state
   Target             | Property              | Value 
   -------------------+-----------------------+-------
   /SYS               | fault_state           | OK
   /SYS/FM0           | fault_state           | Faulted
   /SYS/FM0/FAN0      | fault_state           | Faulted
   /SYS/FM0/FAN1      | fault_state           | OK
   /SYS/FM1           | fault_state           | OK
   /SYS/FM1/FAN0      | fault_state           | OK
   /SYS/FM1/FAN1      | fault_state           | OK
   /SYS/FM2           | fault_state           | OK
   /SYS/FM2/FAN0      | fault_state           | OK
   /SYS/FM2/FAN1      | fault_state           | OK
   /SYS/FM3           | fault_state           | OK
   /SYS/FM3/FAN0      | fault_state           | OK
   /SYS/FM3/FAN1      | fault_state           | OK
   .
   .
   .
   ->

   In the output, look for the rows beginning with /SYS/FM.

   If a fan module's fault states are anything other than OK, replace the fan module. Start at Remove a Fan Module.

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

   See Detecting and Managing Faults.

Related Information

• Fan Module LED

• Remove a Fan Module

• Install a Fan Module

• Verify a Fan Module