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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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MM: Board Power-on Failure Due to Power Capping (Major, SlotN Monitor/M Monitor)

MM: Board Power-on Failure Due to Power Capping (Major, SlotN Monitor/M Monitor)


Alarm message:

Blade power on failure because of power capping

This alarm is generated when a board fails to be powered on due to power capping, with flat management enabled.

This alarm is generated by the following sensors:

  • SlotN Monitor
  • M Monitor


Alarm ID

Alarm Severity

Auto Clear








Slot number of the compute node. The value range is 1 to 32.


Slot number of the compute node. The values are 1E, 2X, 3X, and 4E.

Impact on the System

The blade cannot be powered on.

Possible Causes

The real-time chassis power is close to the chassis power cap value, so the newly installed compute node cannot be powered on.


  1. On the HMM Web, choose PSUs&Fans > PSU Management >Power Capping Settings.
  2. Obtain the "Real-time chassis power" and "Chassis power capping" and find the maximum power consumption from the compute node user guide.
  3. Check whether the sum of the Real-time chassis power and maximum power consumption is greater than Chasis Power Capping Value.

    • If yes, go to 4.
    • If no, go to 5.

  4. Set the chassis power cap value to a proper value. 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: EDOC1000015902

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