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E9000 Server V100R001 HMM Alarm Handling 19

This document describes E9000 server alarms in terms of the meaning, impact on the system, possible causes, and solutions.
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MM: Overtemperature (Minor, Ambient Temp)

MM: Overtemperature (Minor, Ambient Temp)

Description

Alarm message:

Temperature above minor threshold

This alarm is generated when the Ambient Temp sensor detects that the temperature is higher than the minor alarm threshold.

Commands for viewing and setting the minor alarm threshold are as follows:

  • View command: smmget [-l smm] -t sensorname -d uppernoncritical
  • Set command: smmset [-l smm] -t sensorname -d uppernoncritical -v uppernoncriticalval

This alarm is generated by the following sensor:

Ambient Temp

Attribute

Alarm ID

Alarm Severity

Auto Clear

0x0147FF01

Minor

Yes

Impact on the System

The components of the device are damaged and the mainboard is burnt, which causes unrecoverable damage to the system hardware. In general, the system automatically increases the fan speed to reduce the temperature, and then the alarm is cleared automatically. If the alarm persists, certain problems may exist in the system, which causes the system temperature to increase, and even causes severer alarms to be generated. Therefore, after a temperature alarm is generated, locate the problems as soon as possible to prevent the problems from becoming worse.

Possible Causes

  • The fan module is faulty.
  • The fan module is not installed in the fan module slots 13 and 14 respectively.
  • The ambient temperature in the equipment room is high.
  • The air intake vent or air exhaust vent is blocked.
  • The air baffle is not installed in a vacant slot.
  • The fan speed adjustment mode is set to manual, and the fan speed is low.
  • The sensor threshold is not proper.

Procedure

  1. Check whether the fan fault alarm is generated.

    • If yes, go to 2.
    • If no, go to 3.

  2. Clear the fan fault alarm. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 3.

  3. Check whether fans are properly installed in slots 13 and 14.

    • If yes, go to 5.
    • If no, go to 4.

  4. Install fans in slots 13 and 14 properly. Then check whether the alarm is cleared.

    For details about how to install the fans, see the E9000 Server User Guide.
    • If yes, no further action is required.
    • If no, go to 5.

  5. Check whether the ambient temperature is higher than 40°C (104°F).

    • If yes, go to 6.
    • If no, go to 7.

  6. Reduce the ambient temperature in the equipment room by using air conditioners and fans (for example, turn down the air conditioners and increase the fan speed. When the air conditioners cannot work properly, open doors and windows for ventilation) Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 7.

  7. Check whether the air intake vent or air exhaust vent is blocked.

    • If yes, go to 8.
    • If no, go to 9.

  8. Remove the barriers. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 9.

  9. Check whether an air baffle is inserted into the rear vacant slot of the chassis.

    • If yes, go to 11.
    • If no, go to 10.

  10. Insert an air baffle into each vacant slot. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 11.

  11. Run the smmget -l shelf -d fancontrolmode command on the MM910 CLI to check whether the fan module speed adjustment mode is set to manual.

    If the following command output is displayed, the fan module speed adjustment mode is set to manual.

    root@SMM:/# smmget -l shelf -d fancontrolmode 
    Manual Control
    • If yes, go to 12.
    • If no, go to 13.

  12. Run the smmset -l shelf -d fancontrolmode -v auto command on the MM910 CLI to change the fan module speed adjustment mode to automatic. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 13.

  13. Run the smmget -t sensor -d uppernoncritical command on the MM910 CLI to check whether the minor alarm threshold is set properly.

    The minor alarm threshold is set to 47°C (116.6°F) for the Ambient Temp sensor

    If the following command output is displayed, the alarm threshold is set properly.

    root@SMM:/# smmget -t Ambient Temp -d uppernoncritical 
    Upper Non-critical:   47.000 Celsius
    • If yes, go to 14.
    • If no, go to 15.

  14. Run the smmset -t sensor -d uppernoncritical -v value command on the MM910 CLI (value indicates the minor alarm threshold). Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 15.

  15. Check whether the fan module is running properly. If the fan module is running at lower speed, remove and reinstall the fan module. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 16.

  16. Replace the fan module. Then check whether the alarm is cleared. For details about how to replace the fan module, see the E9000 Server User Guide.

    • If yes, no further action is required.
    • If no, go to 17.

  17. On the HMM WebUI, choose System Management > Information Collection, and collect logs.
  18. Contact Huawei technical support.
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Updated: 2018-08-16

Document ID: EDOC1000015902

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