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Huawei Rack Server iBMC Alarm Handling 28

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.
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ALM-0x2901FFFF Battery Failed (RAID Card BBU/PCIeN Card BBU)

ALM-0x2901FFFF Battery Failed (RAID Card BBU/PCIeN Card BBU)

Description

Alarm message:

Battery Failed

This alarm is generated when the BBU (iBBU or supercapacitor) of the RAID controller card is faulty.

Sensor triggering the alarm:

  • RAID Card BBU
  • PCIeN Card BBU

Attribute

Alarm ID Alarm Severity Auto Clear

0x2901FFFF

Major

Yes

Parameters

Name Meaning
N Indicates a PCIe slot number.

Impact on the System

If the iBBU or supercapacitor of the RAID controller card is faulty, the power-off protection for cache data is affected.

Possible Causes

  • The BBU triggers the replacement alarm.
  • The BBU learn cycle fails.
  • The BBU learn cycle times out.
  • The BBU triggers an pre-alarm.
  • The capacity of the BBU (supercapacitor only) is low.
  • The BBU has no capacity for cache-offload.

Procedure

  1. Power off the server, and remove the power cables from the server.
  2. Replace the BBU for the RAID controller card.
  3. After the server is powered on again and the OS startup is complete, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 4.

  4. Contact Huawei technical support.
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Updated: 2019-06-04

Document ID: EDOC1000054724

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