No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search


To have a better experience, please upgrade your IE browser.


FusionServer Pro Rack Server iBMC Alarm Handling 31

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
ALM-0x2901FFFF Battery Failed (RAID Card BBU/PCIeN Card BBU)

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


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


Alarm ID Alarm Severity Auto Clear





Name Meaning


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.


  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.
Updated: 2019-11-19

Document ID: EDOC1000054724

Views: 393578

Downloads: 3176

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next