Resolving a sensor indicator problem

Learn how to resolve a sensor indicator problem.

1. If the system is not powered on, boot the system to the operational state. Log in to the BMC web interface. Then, click Server Health > Sensor Readings.

   Are any of the sensor indicator LEDs red?

   • Yes: Continue with the next step.
   • No: This ends the procedure.
2. Record the names of any sensors that have a red LED indicator status.
   Note: Repeat steps 3 - 6 for every sensor that you record in this step.
3. Use one of the following commands to list the sensor event logs (SELs).
   • To list SELs by using an in-band network, enter the following command:

     ipmitool sel elist

   • To list SELs remotely over the LAN, enter the following command:

     ipmitool -I lanplus -U <username> -P <password> -H <BMC IP addres or BMC hostname> sel elist

4. Review the list of SELs and locate the log entry that meets the following criteria:
   • The name of any of the sensors you recorded in step 2.
   • A service action keyword is present. For a list of service action keywords, see Identifying service action keywords in system event logs.
   • Asserted is in the description.

   Did you identify a log entry that meets the above criteria?

   • Yes: Continue with the next step.
   • No: Go to Collecting diagnostic data. Then, go to Contacting IBM service and support. This ends the procedure.
5. Use one of the following options to display the SEL details for the sensor:
   Note: You must specify the SEL record ID in hexadecimal format. For example: 0x1a.
   • To display SEL details by using an in-band network, enter the following command:

     ipmitool sel get <SEL record ID>

   • To display SEL details remotely over the LAN, enter the following command:

     ipmitool -I lanplus -U <username> -P <password> -H <BMC IP address or BMC hostname> sel get <SEL record ID>

6. The sensor ID field contains sensor information in the sensor name (sensor ID) format. Record the sensor name, sensor ID, and event description. Then, use this information to determine the service action to perform:
   • If your system is an 8001-12C or 8005-12N, go to Identifying a service action by using sensor and event information for the 8001-12C and 8005-12N to determine the service action to perform. This ends the procedure.
   • If your system is an 8001-22C or 8005-22N, go to Identifying a service action by using sensor and event information for the 8001-22C and 8005-22N to determine the service action to perform. This ends the procedure.