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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-0x28000003 Incorrect Connection of CPLD Signal Cables (Cable, Major Alarm)

ALM-0x28000003 Incorrect Connection of CPLD Signal Cables (Cable, Major Alarm)

Description

Alarm message:

Incorrect connection (signal cable arg1) between the mainboard and the arg2.

This alarm is generated when the connection between the mainboard and the disk backplane or PCIe riser card is incorrect.

Alarm object: cable

Attribute

Alarm ID Alarm Severity Auto Clear

0x28000003

Major

Yes

Parameters

Name Meaning
arg1

Serial number of the signal cable.

arg2

Component to which the signal cable connects. For example, disk backplane or PCIe riser card.

Impact on the System

The iBMC cannot obtain information from the hard disk backplane or PCIe riser card. As a result, information about the hard disks and PCIe cards in the server, hard disk backplane CPLD version, and PCIe riser card version cannot be displayed normally.

Possible Causes

  • The connection between the mainboard and the disk backplane is abnormal.
  • The connection between the mainboard and the PCIe riser card is abnormal.

Procedure

  1. Check whether the hard disk backplane or PCIe riser card cables are connected correctly.

    For details about the cable connection sequence, see the user guide of the server you use.

    • If yes, go to 3.

    • If no, go to 2.

  2. Connect the hard disk backplane or PCIe riser card cables in correct sequence. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 4.

  3. Remove and reconnect the hard disk backplane or PCIe riser card cables. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 4.

  4. Replace the hard disk backplane or PCIe riser card cables. Then, check whether the alarm is cleared.

    • If yes, no further action is required.

    • If no, go to 5.

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

    • If yes, no further action is required.

    • If no, go to 6.

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

Document ID: EDOC1000054724

Views: 241446

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