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FusionServer Pro E9000 Server iBMC (Earlier than V250) Alarm Handling 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
ALM-0147FFFF Transition to Non-Critical from OK (Mos Temp Hot)

ALM-0147FFFF Transition to Non-Critical from OK (Mos Temp Hot)

Description

Alarm message:

Transition to Non-Critical from OK

This alarm is generated when a MOSFET temperature detection point of the soft-start circuit detects overtemperature for the third time.

This alarm is generated by the following sensor:

  • Mos Temp Hot

Attribute

Alarm ID

Alarm Severity

Auto Clear

0741FFFF

Minor

Yes

Parameters

Name

Meaning

Time

Indicates the time when an alarm is generated.

Sensor

Name of the sensor that generated the alarm.

Event

Provides detailed information about the alarm.

Severity

Indicates the severity of the alarm.

Event Code

Indicates the event code of an alarm.

Impact on the System

MOSFET overtemperature of the soft-start circuit on a board may cause the board to power off and interrupt services.

Possible Causes

  • The soft-start circuit of the board is faulty.
  • A fan module is faulty.
  • The ambient temperature is higher than 30°C (86°F).
  • The air intake vent is blocked.
  • The air exhaust vent is blocked.
  • The mainboard is faulty.

Procedure

  1. Check whether a low fan speed alarm is generated for a fan module.

    Log in to the MM910 CLI command-line interface (CLI) or WebUI, and check for fan module alarms.

  2. Remove and then reinstall the fan module. Five minutes later, check whether the alarm is cleared.

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

  3. Replace the fan module. Five minutes later, check whether the alarm is cleared.

    For details about how to replace a fan module, see the server user guide.

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

  4. Check whether the ambient temperature is higher than 30°C (86°F).

  5. Lower the ambient temperature to a range of 10°C to 30°C (50°F to 86°F). Five minutes later, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 6.

  6. Check whether the air intake or exhaust vent is blocked.

  7. Remove barriers from the air intake or exhaust vent. Then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 8.

  8. Replace the mainboard, then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to Step 9.

  9. Record server fault information, then power off and remove the faulty board, and contact Huawei technical support for help.
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Updated: 2019-11-19

Document ID: EDOC1100035007

Views: 28366

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