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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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Slot: Overtemperature (Major, Inlet Temp/Inlet TempN)

Slot: Overtemperature (Major, Inlet Temp/Inlet TempN)

Description

Alarm message:

Temperature above major threshold

or

The air inlet temperature (arg1 degrees C) exceeds the overtemperature threshold (arg2 degrees C).

This alarm is generated when the air inlet temperature exceeds the overtemperature major threshold.

This alarm is generated by the following sensors:

  • Inlet Temp
  • Inlet TempN

Attribute

Alarm ID

Alarm Severity

Auto Clear

0x0149FF01

Major

Yes

Parameters

Name

Meaning

N

Number of the sensor.

arg1

Current reading of the sensor.

arg2

Alarm threshold.

Impact on the System

The components of the device are damaged and the mainboard is burnt, which causes unrecoverable damage to the system hardware. In general, the system automatically increases the fan speed to reduce the temperature, and then the alarm is cleared automatically. If the alarm persists, certain problems may exist in the system, which causes the system temperature to increase, and even causes severer alarms to be generated. Therefore, after a temperature alarm is generated, locate the problems as soon as possible to prevent the problems from becoming worse.

Possible Causes

  • The ambient temperature exceeds the normal range.
  • The air inlet or outlet is blocked.
  • Idle slots or spaces are not installed with filler panels.
  • The mainboard is faulty.

Procedure

  1. Check whether the equipment room temperature exceeds the normal range.

    • If yes, go to 2.
    • If no, go to 3.

  2. Reduce the equipment room temperature to the normal range. After 5 minutes, check whether the alarm is cleared.

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

  3. Check whether the server air inlet or outlet is blocked.

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

  4. Clear the blockage. After 5 minutes, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 5.

  5. Check whether there are empty slots in the server.

    • If yes, go to 7.
    • If no, go to 6.

  6. Install filler panels in empty slots. Then, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 7.

  7. Replace the mainboard. Then, check whether the alarm is cleared.

    For details, see the server user guide.

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

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

Document ID: EDOC1000015902

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