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System Management Module 2 problems

Use this information to resolve issues related the to the System Management Module 2.

System Management Module 2 does not power on​

Complete the following steps until the problem is resolved:

  1. Check if the power supplies are installed correctly and power supply LEDs are lit normally.

  2. Reseat the SMM2 and check the LED status again.

  3. If the problem persists, replace the SMM2.

System Management Module 2 status LED is not flashing normally​

When the SMM2 is working, its status LED flashes at a slower speed (about once every two seconds).

If the SMM2 status LED is continuously on or off, or it has been flashing rapidly (two or 10 times per second) for more than 15 minutes, it indicates that the SMM2 may have encountered a problem.

Complete the following steps until the problem is resolved:

  1. Reseat the SMM2.

  2. If the problem persists, replace the SMM2.

System Management Module 2 ping failure​

Complete the following steps until the problem is solved.

  1. Check the SMM2 IP address and network status via Lenovo XClarity Controller.

  2. Alternatively, you can check SMM2 LEDs to diagnose the SMM2 status (see System Management Module 2 (SMM2) for SMM2 LEDs details).

    • If the SMM2 power LED and the status LED are working abnormally, reinstall the SMM2.

  3. If the problem persists, replace the SMM2.

System fans failed while the System Management Module 2 is working normally​

Complete the following steps until the problem is solved.

  1. Check SMM2 FFDC and SNMP event logs to see if there is any fan fault or absence issue.

    Note
    To collect FFDC logs, you can perform one of the following actions:

    • Insert a USB storage device to the USB connector on SMM2 and then press the USB port service mode button to collect FFDC logs. See System Management Module 2 (SMM2) for the location of the connector and button.

    • Login to the SMM2 WebGUI and click on the Capture button of FFDC in the Management Module section under Enclosure Rear Overview (see Enclosure Rear Overview).

  2. If there is a fan fault or absence issue, reseat the failing fans.

  3. Check the SMM2 FFDC and SNMP event logs to see if there is any compute node communication issue.

    Note
    To protect the compute node from thermal damages, the SMM2 is designed to ramp up all system fans if the compute node lost its communication with the SMM2.

    • If the problem persists, reset Lenovo XClarity Controller and login to Lenovo XClarity Controller to collect FFDC logs and check if there is any warning or error reported.

  4. If the problem persists, please consult with the technical service.