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OceanStor BCManager 6.5.0 eReplication User Guide 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).
The Register VM Step Fails to Be Performed and Message Failed to register volumes and LUN that is required by the VM has not been mapped to the host, has become invalid or has not been managed by a consistent group Are Displayed When the Fault Recovery Step Is Performed

The Register VM Step Fails to Be Performed and Message Failed to register volumes and LUN that is required by the VM has not been mapped to the host, has become invalid or has not been managed by a consistent group Are Displayed When the Fault Recovery Step Is Performed

Symptom

After FC is refreshed, the Fault Recovery operation is performed. In the Register VM step, message Failed to register volumes. is displayed. FusionCompute is logged in to and the datastore created during fault recovery is deleted. When the Fault Recovery step is performed again, the Register VM step fails to be performed. Message LUN that is required by the VM has not been mapped to the host, has become invalid or has not been managed by a consistent group. is displayed, as shown in Figure 8-8 and Figure 8-9.

Figure 8-8  Symptom

Figure 8-9  Symptom

Possible Causes

UltraVR does not have the Enable data replication step during fault recovery. When this problem occurs, the automatic execution time for the protected group has not come or the protected group is not manually executed for data synchronization. Therefore, the LUN information on the production storage array (disks added) is inconsistent with that on the DR storage array. The volume information does not exist on the DR storage array. After the production FC is refreshed, the command for registering the DR disk delivered by UltraVR has been updated. Therefore, the DR FC registers a disk that does not have disk data on the DR LUN. As a result, the disk fails to be registered.

Procedure

  1. Log in to eReplication.
  2. Delete the failed recovery plan.
    1. On the menu bar, choose Recovery.
    2. Select the recovery plan to be deleted and click More > Delete on the Operation list.
    3. In the Warning dialog box that is displayed, read the content of the dialog box carefully and select I have read and understood the consequences associated with performing this operation.
    4. Click OK.
  3. Delete the protected group where the failed recovery plan resides.
    1. On the menu bar, choose Protection > FusionSphere VM.
    2. Select the protected group that you want to delete and click More > Delete on the Operation list.
    3. In the Warning dialog box that is displayed, read the content of the dialog box carefully and select I have read and understood the consequences associated with performing this operation.
    4. Click OK.
  4. Synchronize the remote replication again.
    1. Log in to the storage device where the secondary LUN resides.
    2. On the menu bar, choose Data Protection > Remote Replication.
    3. Right-click the remote replication where the secondary LUN resides and choose Enable protection for secondary resource from the shortcut menu.
    4. Right-click the remote replication where the secondary LUN resides and choose Synchronize from the shortcut menu. Remote replication running status is Normal after synchronization.
  5. Create protected groups and recovery plans on eReplication at the production center.
  6. On the menu bar, select Protection, and specify the protection type of the protected group to be enabled.
  7. Select the protected group to be enabled and click Execute on the Operation list.
  8. On the menu bar, choose Recovery.
  9. Select the recovery plan to be tested, and click Test on the Operation list.

    The Test dialog box is displayed.

  10. Carefully read the content of the Warning dialog box that is displayed and click OK to confirm the information.
  11. Select the recovery plan to be cleared, and click More > Clear on the Operation list.
  12. Click OK.
  13. Select the remote recovery plan for the Fault Recovery and click More > Fault Recovery on the Operation list.
  14. In the Warning dialog box that is displayed, read the content of the dialog box carefully and select I have read and understood the consequences associated with performing this operation.
  15. Click OK.

Suggestion and Summary

After adding or deleting disks for a protected VM or expanding the capacity of the array or datastore, refresh the information about the protected VM and manually execute the protected group where the VM resides. If the recovery plan fails to be executed, do not add, delete, and modify disaster recovery resources. Contact Huawei technical support.

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Updated: 2019-05-21

Document ID: EDOC1100075861

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