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KunLun Mission Critical Server V100R001 CMC Alarm Handling 09

This document describes KunLun 9016 and 9032 alarms in the CMC, in terms of their meanings, impact on the system, possible causes, and handling suggestions.
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ALM-2800000B CPU QPI Link Degrade

ALM-2800000B CPU QPI Link Degrade


Alarm message:

CPU # QPI # link degrade.


Alarm ID

Alarm Severity

Auto Clear







Alarm Severity

Indicates the alarm severity.

Alarm Source

Indicates the alarm source.


Indicates the event body for which an alarm is generated.


Indicates the time when an alarm is generated.


Provides an alarm description.

Event Code

Indicates the event code of an alarm.

Impact on the System

Server performance may be affected.

Possible Causes

  • The CPU socket is damaged or in poor contact.
  • The CPU is faulty.
  • The mainboard is faulty.


  1. Gracefully power off the server.
  2. Remove the CPU, and check whether the CPU socket has bent pins.

    For details about how to remove a CPU, see the KunLun 90xx V100R001 User Guide.

  3. Check whether the CPU is faulty.

    The following alarm message is used as an example to describe the check method:

    Cable / Interconnect (CPU1 QPI Link)
    1. Exchange the positions of CPU 1 and a functional CPU.
    2. Power on the server. If an alarm is still generated for CPU 1, CPU 1 is faulty. Otherwise, the QPI link is faulty.

  4. Gracefully power off the server, replace the CPU, and power it on again. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 6.

  5. Gracefully power off the server, replace the mainboard, and power it on again. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 6.

  6. Contact Huawei technical support.
Updated: 2018-12-29

Document ID: EDOC1000111849

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