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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-0x32000001 Hard Disk Backplane Expander Fault (Expander, Minor Alarm)

ALM-0x32000001 Hard Disk Backplane Expander Fault (Expander, Minor Alarm)


Alarm message:

The arg1 disk backplane arg2 expander arg3 is faulty.

The alarm is generated when the hard disk backplane expander is faulty.

Alarm object: expander


Alarm ID Alarm Severity Auto Clear





Name Meaning

Location of the power supply backplane, for example, rear, inner, or front.


Power supply type, for example, 5V or 12V.


The hard disk backplane expander number.

Impact on the System

Hard disks cannot be accessed.

Possible Causes

  • The hard disk backplane expander is faulty.


  1. Replace the hard disk backplane expander. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 2.

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

Document ID: EDOC1000054724

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