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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.

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ALM-0x1A000031 Insufficient NAND Flash Reserved Blocks (BMC, Major Alarm)

ALM-0x1A000031 Insufficient NAND Flash Reserved Blocks (BMC, Major Alarm)


Alarm message:

The remaining reserved blocks of the NAND flash are less than arg1. 

This alarm is generated when the number of reserved blocks available for the NAND flash is less than the threshold.

Alarm object: BMC

Only iBMC V296 to V369 support this alarm.


Alarm ID Alarm Severity Auto Clear





Name Meaning


Threshold of the number of reserved NAND flash blocks available, for example, 10.

Impact on the System

The iBMC cannot operate properly.

Possible Causes

The number of reserved NAND flash blocks available is less than the threshold.


  1. Replace the mainboard. 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: 2019-11-19

Document ID: EDOC1000054724

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