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Huawei Rack Server iBMC Alarm Handling 27

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.
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ALM-0x0802FFFF Predictive Failure (PSN Status)

ALM-0x0802FFFF Predictive Failure (PSN Status)

Description

Alarm message:

Predictive failure

This alarm is generated when the power supply unit (PSU) temperature is excessively high. This alarm is cleared when the system detects that the temperature falls below the threshold.

Sensor triggering the alarm: PSN Status

Attribute

Alarm ID Alarm Severity Auto Clear

0x0802FFFF

Minor

Yes

Parameters

Name Meaning
N

Serial number of the PSU.

Impact on the System

When the PSU temperature is excessively high, its service life shortens, and the power cannot be supplied to the server properly or the server powers off. Services will be interrupted.

Possible Causes

  • The ambient temperature exceeds the normal range.

  • The PSU is faulty.

Procedure

  1. Check whether the temperature room temperature exceeds the normal range.

    • If yes, go to 2.

    • If no, go to 3.

  2. Lower the ambient temperature to the normal range. After 5 minutes, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 3.

  3. Check whether the fan for the PSU works properly.

    • If yes, go to 4.

    • If no, go to 5.

  4. If the PSUs are in redundancy mode and the other PSUs are working properly, remove and then install the faulty PSU. Check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 5.

  5. Replace the PSU. Check whether the alarm is cleared.

    For details about how to replace the PSU, see "Replacing Parts" in the server user guide.

    • If yes, no further action is required.

    • If no, go to 6.

  6. Contact Huawei technical support.
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Updated: 2019-02-28

Document ID: EDOC1000054724

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