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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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Swi: Overvoltage (Major, +1.0V 56845 VDD/+1.0V 56845 VDC)

Swi: Overvoltage (Major, +1.0V 56845 VDD/+1.0V 56845 VDC)


Alarm message:

Voltage above upper major threshold

This alarm is generated when the voltage of the idetection point lower than the major alarm lower threshold.

This alarm is generated by the following sensors:

  • +1.0V 56845 VDD
  • +1.0V 56845 VDC


Alarm ID

Alarm Severity

Auto Clear




Impact on the System

When devices work with a upper voltage, the component performance deteriorates, the device service life shortens, which causes system breakdown.

Possible Causes

The switch module is faulty.


  1. Back up service data of the switch module and switch over services to the standby network.
  2. Reseat the switch module. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 3.

  3. Replace the switch module. Then, check whether the alarm is cleared.

    For details about how to replace the switch module, see the E9000 Server User Guide..

    • If yes, no further action is required.
    • If no, go to 4.

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

Document ID: EDOC1000015902

Views: 209305

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