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E9000 Server V100R001 HMM Alarm Handling 19

This document describes E9000 server alarms in terms of the meaning, impact on the system, possible causes, and solutions.
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Slot: CPU MCE/AER Error (Critical, CPUN Status)

Slot: CPU MCE/AER Error (Critical, CPUN Status)

Description

Alarm message:

Machine check exception

or

CPU arg1 triggered an uncorrectable error, arg2.

This alarm is generated when one of the following errors occurs:

  • The SMI2 link fails in non-memory mirroring mode.
  • The CPU runs an error program.
  • A parity error occurs on the voltage mode single ended (VMSE) link.
  • The memory controller receives data marked with the poison tag.

This alarm is generated by the following sensors:

CPUN Status

Attribute

Alarm ID

Alarm Severity

Auto Clear

0x070BFFFF

Critical

Yes

Parameters

Name

Meaning

arg1, N

Slot number of the CPU.

arg2

Error code of the alarm.

Impact on the System

Services are interrupted, or the system restarts.

Possible Causes

  • The CPU runs an error program.
  • The mainboard is faulty.

Procedure

  1. Remove and reinstall the CPU. Then, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 2.

  2. Switch the CPU with a functioning CPU in the same chassis, and check whether the alarm is still generated for this CPU.

    • If yes, go to 3.
    • If no, go to 4.

  3. Replace the CPU. Then, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to5.

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

    • If yes, no further action is required.
    • If no, go to 5.

  5. On the HMM WebUI, choose System Management > Information Collection, and collect logs.
  6. Contact Huawei technical support.
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Updated: 2018-08-16

Document ID: EDOC1000015902

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