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Huawei Rack Server iBMC Alarm Handling 27

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.
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ALM-0x2301FFFF Watchdog Overflow, Hard Reset (Watchdog2)

ALM-0x2301FFFF Watchdog Overflow, Hard Reset (Watchdog2)

Description

Alarm message:

Watchdog overflow,hard reset

This alarm is generated when the watchdog times out during a phase (BIOS POST, OS Load, or SMS/OS displayed in the timer user field), and the timeout action is set to hard reset after the watchdog is enabled.

NOTE:

This alarm can be generated only after the watchdog is enabled.

Sensor triggering the alarm: Watchdog2

Attribute

Alarm ID Alarm Severity Auto Clear

0x2301FFFF

Major

Yes

Impact on the System

The system performs hard reset when the watchdog times out. Then services are interrupted, and unsaved data is lost.

Possible Causes

  • If this alarm is generated in the BIOS/POST process, the hardware is faulty or the basic input/output system (BIOS) fails to start.

  • If this alarm is generated in the OS Load process, the OS fails to start.

  • If this alarm is generated in the SMS/OS process, a service software is faulty.

Procedure

  1. Disable the watchdog and restart the server.
  2. Use the remote keyboard, video, and mouse (KVM) to check displayed information during system startup. Choose handling methods based on the process in which the alarm is generated.

    • If the alarm is generated in the BIOS/POST process, log in to the iBMC CLI, and run the ipmcget -d port80 command to check information about port 80.
    • If the alarm is generated in the OS Load process, use the remote KVM to view error messages in the OS for fault locating.
    • If the alarm is generated in the SMS/OS process, log in to the OS, and check whether faults occur in the software where the watchdog is enabled, or the software is suspended.

  3. Contact Huawei technical support.
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Updated: 2019-02-28

Document ID: EDOC1000054724

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