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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: Undervoltage (Major, BASE LSW Vcore/BASE LSW VDD)

Swi: Undervoltage (Major, BASE LSW Vcore/BASE LSW VDD)

Description

Alarm message:

Voltage below lower major threshold

or

Switch module base plane switch voltage (arg1 V) at arg2 detection point is lower than the undervoltage threshold (arg3 V).

This alarm is generated when the voltage of the switch chip on the switch module Base plane is lower than the undervoltage major threshold.

This alarm is generated by the following sensors:

  • BASE LSW Vcore
  • BASE LSW VDD

Attribute

Alarm ID

Alarm Severity

Auto Clear

0x0142FF02

Major

Yes

Parameters

Name

Meaning

arg1

Current reading of the sensor.

arg2

Voltage detection point. For example, VDD or Vcore.

arg3

Alarm threshold.

Impact on the System

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

Possible Causes

The switch module is faulty.

Procedure

  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.
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Updated: 2018-08-16

Document ID: EDOC1000015902

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