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Huawei Rack Server iBMC Alarm Handling 28

This document describes iBMC alarms in terms of the meaning, impact on the system, possible causes, and handling suggestions.
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ALM-0x0147FFFF Above Upper Minor Threshold (Inlet Temp)

ALM-0x0147FFFF Above Upper Minor Threshold (Inlet Temp)

Description

Alarm message:

Above upper minor threshold

This alarm is generated when the sensor detects that the air inlet temperature is higher than the minor alarm upper threshold. This alarm is cleared when the system detects that the temperature falls below the threshold.

Sensor triggering the alarm: Inlet Temp

Attribute

Alarm ID Alarm Severity Auto Clear
0x0147FFFF Minor Yes

Impact on the System

The components on the server cannot operate stably.

Possible Causes

  • The ambient temperature exceeds the normal range.

  • The air inlet is blocked.

  • Idle slots or spaces are not installed with filler panels.

  • The component holding the sensor is faulty.

The location of the Inlet Temp sensor varies depending on the server model. For details, see the user guide of the server you use. The RH2288H V3 server is used as an example to describe how to clear the alarm.

The Inlet Temp sensor is located on the left mounting ear of the RH2288H V3 server. For details, see the RH2288H V3 User Guide.

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 thenormal 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 air inlet is blocked.

    • If yes, go to 4.

    • If no, go to 5.

  4. Remove the blockage from the air inlet. Five minutes later, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 5.

  5. Check whether filler panels or baffles are installed in the idle slots or spaces between servers.

    • If yes, go to 7.

    • If no, go to 6.

  6. Install filler panels in idle slots or baffles in spaces between servers. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 7.

  7. Replace the component where the air inlet temperature sensor is located. Then, check whether the alarm is cleared.

    The location of the air inlet temperature sensor varies with the server model:
    • 1U rack server: The air inlet temperature sensor is located on the indicator plate.
    • 2U rack server: The air inlet temperature sensor is located on the indicator plate on the left mounting ear.
    • RH5885 V3 or RH5885H V3: The air inlet temperature sensor is located on the right mounting ear.
    • RH8100 V3: The air inlet temperature sensor is on the indicator plate on the left mounting ear.
    For details, see the sensor list in the server user guide.

    In this example, remove and reconnect the cable between the indicator plate on the left mounting ear and the mainboard of the RH2288H V3 server. For details, see "Internal Cabling" in the user guide. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 8.

  8. Contact Huawei technical support.
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Updated: 2019-06-04

Document ID: EDOC1000054724

Views: 248346

Downloads: 2955

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