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E9000 Server Compute Node and Switch Module iMana 200 Alarm Handling 01

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ALM-0x1B01FFFF QPI Connection Failed Major Alarm (CPUN QPI Link)

ALM-0x1B01FFFF QPI Connection Failed Major Alarm (CPUN QPI Link)


Alarm message:

Cable / Interconnect

This alarm is generated when the QuickPath Interconnect (QPI/UPI) bus is faulty.

This alarm is generated by the following sensor: CPUN QPI Link


Alarm ID

Alarm Severity

Auto Clear








Slot number of the CPU.

Impact on the System

Server performance is affected.

Possible Causes

  • The QPI/UPI link is faulty.
  • The CPU is faulty.


  1. Power off the compute node and remove it from the chassis. Then check whether the CPU socket is damaged.

    • If yes, go to 4.
    • If no, go to 2.
    You can power off the compute node using either of the following methods:
    • On the HMM CLI, run the smmset -l bladeN -d powerstate -v poweroff command.
    • On the HMM WebUI, choose PSUs & Fans > PSU Management > Power Control, and click the power control button to power off the compute node.

  2. Check whether the CPU is faulty.

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

    The following is an example of clearing the alarm.

    Incorrect cable connected/Incorrect interconnection (CPU1 QPI Link)
    1. Switch positions of CPU1 and a normal CPU.
    2. Power on the server. If the CPU indicated in the alarm message is changed, CPU1 is faulty. Otherwise, the QPI link on the mainboard is faulty.

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

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

  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.
Updated: 2018-08-16

Document ID: EDOC1100035007

Views: 15316

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