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FusionAccess 6.5 Alarm Handling 04

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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).
1013002 Failed to Restore Desktop Disks Using a Snapshot

1013002 Failed to Restore Desktop Disks Using a Snapshot

Description

This alarm is generated when a desktop disk failed to be restored using a snapshot. This alarm is automatically cleared when the disk restoration task is successfully executed on a specific desktop using a snapshot.

Attribute

Alarm ID

Alarm Severity

Auto Clear

1013002

Major

Yes

Parameters

Name

Meaning

Alarm ID

Identifies an alarm. Each alarm is uniquely identified by an alarm ID and an alarm name.

Alarm Severity

Indicates the severity of an alarm. Value:

  • Critical: indicates that a fault affecting services provided by the system occurs. You need to rectify the fault immediately. If a device or resource is faulty, rectify it immediately even if the fault occurs during non-working hours.
  • Major: indicates that a fault affecting the service quality of the system occurs. You need to rectify the fault immediately. If the service quality of a device or resource is degraded, rectify it immediately during working hours.
  • Minor: indicates a fault that does not affect service quality. To prevent more serious faults, this type of alarm needs to be observed or handled if necessary.
  • Warning: indicates a fault that may affect service quality. This type of alarm must be handled based on the error type.

Alarm Name

Identifies an alarm. Each alarm is uniquely identified by an alarm ID and an alarm name.

Object Type

Specifies the type of the object for which the alarm is generated.

Alarm Object Name

Specifies the name of the object for which the alarm is generated.

Generation Time

Specifies the time when the alarm is generated.

Clear Time

Specifies the time when the alarm is cleared.

Clear Mode

Specifies whether the alarm is manually or automatically cleared.

Operation

Specifies the operation that can be performed on the alarm.

Value: Manually Clear Alarm

Impact on the System

If a specific desktop fails to restore disks using snapshots, important user data may fail to be retrieved.

If the system disk fails to be restored, users may fail to log in to the system.

Possible Causes

  • The virtualization platform is abnormal.
  • Disk tasks conflict.

Procedure

  1. Check whether the alarm is automatically cleared. If the alarm is automatically cleared, the snapshot task has been successfully created on the desktop.
  2. If the alarm persists, use different methods for different virtualization platforms.

    FusionCompute platform

  3. Log in to FusionCompute, choose System Management > Task and Logs > Task Center, and check whether the snapshot restoration task on the desktop fails.

    • If the fault persists, check the cause of the error in the description and rectify the fault based on the FusionCompute O&M guide.
    • If the task succeeds, check the desktop running status and determine whether the VM power supply task fails to be started on the desktop. If the task fails, locate and rectify the fault based on the site requirements.

  4. After the fault is rectified, instruct the end user to perform backup and restoration again.

    OpenStack platform

  5. Log in to the ITA, choose Task Center > Task Tracing, find the corresponding task, click View Details to go to the Task Details page, and handle the error based on the error code in Result.

    • If the error code is 28047, the snapshot task status of the desktop in the HDC failed to be set. In this case, check whether the HDC service status is normal.
    • If the error code is 21018, the desktop failed to be stopped. In this case, check ITA logs, search for the keyword stopComputer to find the failure cause, and locate and rectify the fault based on the actual situation.
    • If the error code is 28026, the disk failed to be uninstalled. In this case, check ITA logs, search for the keyword detachCloudVolume to find the failure cause, and locate and rectify the fault based on the actual situation.
    • If the error code is 28029, the disk failed to be rolled back using the snapshot. Log in to the Elastic Volume Service console of the tenant to which the   corresponding desktop belongs, go to the disk page, and check the disk type displayed in the task details of the ITA, find the disk to be restored on the desktop, and check the disk status. If the rollback fails, the EVS disk failed to be rolled back using the snapshot. In this case, contact the EVS O&M personnel. If the EVS disk is in use, the EVS disk has been rolled back for over 15 minutes. In this case, contact the EVS O&M personnel to check why the EVS disk has been restored for a long time.
    • If the error code is 28031, the disk failed to be mounted. In this case, check ITA logs, search for the keyword attachCloudVolume to find the failure cause, and locate and rectify the fault based on the actual situation.
    • If the error code is 21019, the desktop failed to be started. In this case, check ITA logs, search for the keyword startComputer to find the failure cause, and locate and rectify the fault based on the actual situation.

  6. After the fault is rectified, instruct the end user to perform backup and restoration again.

    Workspace platform

  7. Confirm with the administrator whether the Workspace Manager alarm exists in the alarm period. If yes, clear the Workspace Manager alarm and instruct the user to perform backup and restoration again.
  8. If Workspace Manager is displayed, log in to the ITA page, choose Task Center > Task Tracing, find the corresponding task, click View Details to go to the Task Details page, and handle the error based on the error code in Result.

    • If the error code is 28047, the snapshot task status of the desktop in the HDC failed to be set. In this case, check whether the HDC service status is normal.
    • If the error code is 21018, the desktop failed to be stopped. In this case, check ITA logs, search for the keyword stopComputer to find the failure cause, and locate and rectify the fault based on the actual situation.
    • If the error code is 28026, the disk failed to be uninstalled. In this case, check ITA logs, search for the keyword detachCloudVolume to find the failure cause, and locate and rectify the fault based on the actual situation.
    • If the error code is 28029, the disk failed to be rolled back using the snapshot. Log in to the Elastic Volume Service console of the resource tenant to which the corresponding desktop belongs, go to the disk page, and check the disk type displayed in the task details of the ITA, find the disk to be   restored on the desktop, and check the disk status. If the rollback fails, the EVS disk failed to be rolled back using the snapshot. In this case, contact the EVS O&M personnel. If the EVS disk is in use, the EVS disk has been rolled back for over 15 minutes. In this case, contact the EVS O&M personnel to check why the EVS disk has been restored for a long time.
    • If the error code is 28031, the disk failed to be mounted. In this case, check ITA logs, search for the keyword attachCloudVolume to find the failure cause, and locate and rectify the fault based on the actual situation.
    • If the error code is 21019, the desktop failed to be started. In this case, check ITA logs, search for the keyword startComputer to find the failure cause, and locate and rectify the fault based on the actual situation.

  9. After the fault is rectified, instruct the end user to perform backup and restoration again.

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Updated: 2019-10-11

Document ID: EDOC1100061083

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