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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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PSU: Power Supply Fault (Major, PSN Status)

PSU: Power Supply Fault (Major, PSN Status)

Description

Alarm message:

Power supply failure

This alarm is generated when a sensor detects that the voltage sag or unexpected power failure occurs on a power supply unit (PSU).

This alarm is generated by the following sensors:

PSN Status

Attribute

Alarm ID

Alarm Severity

Auto Clear

0x0801FFFF

Major

Yes

Parameters

Name

Meaning

N

Slot number of the PSU.

Impact on the System

The power cannot be properly supplied to the system, or the chassis powers off, which interrupts services.

Possible Causes

  • The power cable is not properly connected.
  • The ambient temperature is high.
  • The PSU is faulty.
  • The MM910 is faulty.
  • The existing environment does not meet requirements for PSU specifications.
  • The PSU is manually hibernated.

Procedure

  1. On the HMM WebUI, choose PSUs & Fans > PSU Management> PSU Status and click Status of the faulty PSU. Check whether the alarm cause is displayed.

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

  2. Handle the alarm.

    • If the alarm is caused by a power input fault (including input overvoltage and undervoltage protection), check whether the power cable is properly connected and whether the input voltage is normal.
    • If the alarm is caused by high PSU temperature (including overtemperature and undertemperature protection), check whether the environment temperature is too high.
    • If the alarm cause is that the PSU is disabled, run smmset -l pemN -d pemswitch -v 1 (N indicates the PSU number) on the HMM CLI to enable the PSU.
    • For other causes, replace the PSU.

  3. Check whether the power cable is connected properly and whether the input voltage is normal. Then check whether the alarm is cleared.

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

  4. Reinstall the power cable or adjust the input voltage. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 5.

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

Document ID: EDOC1000015902

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