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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-0x0000006F CPU Nimbus Undervoltage (CPU, Major Alarm)

ALM-0x0000006F CPU Nimbus Undervoltage (CPU, Major Alarm)

Description

Alarm message:

The CPU arg1 Nimbus voltage (arg2 V) is lower than the voltage lower threshold (arg3 V) (SN: arg4, PN: arg5).
NOTE:

From iBMC V316, the CPU and disk alarms will also include the SN and part umber and the mainboard and memory alarms will also include the part number.

This alarm is generated when the CPU Nimbus voltage is lower than the undervoltage major threshold.

Alarm object: CPU

Attribute

Alarm ID Alarm Severity Auto Clear

0x0000006F

Major

Yes

Parameters

Name Meaning
arg1

Socket No. of the CPU.

arg2

Current reading of the sensor.

arg3

Alarm threshold.

arg4

CPU serial number.

arg5

Part number.

Impact on the System

System stability is affected.

Possible Causes

  • The power supplies in the equipment room are sufficient for server operation.

  • The mainboard is faulty.

Procedure

  1. Check whether the power supplies in the equipment room are sufficient for server operation.

    • If yes, go to 3.
    • If no, go to 2.

  2. Ensure sufficient power supplies for server operation. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 3.

  3. Power off the server (by removing the power cable or server node) and then power on the server (by reconnecting the power cable or reinstalling the server node). Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 4.

  4. Replace the power cable. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 5.

  5. Replace the mainboard. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 6.

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

Document ID: EDOC1000054724

Views: 242699

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