Dell PowerStore Importing External Storage to PowerStore Guide

Manage agentless import sessions

1. Under Migration, select Import External Storage.
   The Import External Storage page appears and lists information about the existing remote systems.
2. Select Block Imports.
   The Import External Storage page changes and lists information about the existing block import sessions.
3. Perform one of the following import actions:
   NOTE:The import actions that can be performed on an import session depend on the current state of the import session.

   Action	Description
   Cancel	NOTE:For volume, Cancel can be performed only when the import processing state is Queued, Scheduled, Ready To Enable Destination Volume, Ready to Start Copy, Copy In Progress, Paused, Ready For Cutover, or Cancel Required and the host application that is accessing the volume has been shutdown and reconfigured to access the source volume. For volume group, Cancel can be performed only when the import processing state is Queued, Scheduled, In Progress, Paused, Ready For Cutover, Import Cutover Incomplete, Cancel Required, Cancel Failed, Failed and the host application that is accessing the volume has been shutdown. Before cancelling an agentless import session, reconfigure the host application that is accessing the import's destination volume back to the source volume. This is applicable when the import session is being cancelled after the host application has been reconfigured to use the destination volume in PowerStore. Select an import session and under Import Actions, click Cancel. The cancel operation sets the state of the import session to CANCELLED and disables access to the destination volume. It also deletes the destination volume or volume group associated with the import session. NOTE:When all the volumes in a volume group are cancelled successfully, the state of the import session is set to CANCELLED. However, since the status of the volume group is dependent on the final status of the member volumes, if one or more of the member volumes are in a state other than CANCELLED, the status of the volume group is set to Cancel Failed. Repeat the cancel operation again until it succeeds and the status for the volume group becomes CANCELLED. NOTE:Import sessions are not deleted. If you want to delete the import session, use the delete operation that is available only through the REST API. Manual intervention is required to reconfigure the host to access the source volumes again. NOTE:A Force Stop option is not available for Cancel during an agentless import.
   Cutover	Select an import session and under Import Actions, click Cutover to commit an import session. You can cut over an import session that is in the Ready For Cutover state. NOTE:When all the volumes in a consistency group are cut over successfully, the state of the import session is set to Import Complete. However, since the status of the consistency group is dependent on the final status of the member volumes, if one or more of the member volumes are in a state other than Import Complete, the status of the consistency group is set to Cutover_Failed. You must remove all the failed volumes from the consistency group and try the import again.
   Pause	Select an import session and under Import Actions, click Pause. Use Pause to pause an import session that is in the Copy In Progress state. NOTE:The Pause import action on a CG only pauses the member volumes that are in the Copy In Progress state. The CG remains in the In Progress state. Other member volumes that are in other states, such as Queued or In Progress, are not paused and may proceed to the Ready For Cutover state. The other member volumes can be paused when they reach the Copy In Progress state by using the Pause import action again on the CG. If any of the member volumes are in the Paused state but the overall status of the CG is In Progress, both the Pause and Resume import action options are available for the CG.
   Resume	Select an import session and under Import Actions, click Resume. Use Resume to start an import session that is in the Paused state.
   Cleanup	Select an import session and under Import Actions, click Cleanup. Use Cleanup to cleanup an import session that is in the Cleanup Required state.
   Enable Destination Volume	Select each destination volume in the import session that is in the Ready To Enable Destination Volume state and under Import Actions, click Enable Destination Volume. NOTE:The import session changes to the Ready to Start Copy state when the enable destination volume action completes for all the volumes in the import session.
   Start Copy	When the import session has reached the Ready to Start Copy state, select each destination volume in the import session that is in the Ready to Start Copy state and under Import Actions, click Start Copy.

   NOTE:If import of a source volume is in progress and a disaster occurs making the source system unusable or unreachable, you may need to contact your service provider to recover the source system involved in the import.

   NOTE: During an import session with a Dell PS Series source system that has not shared volumes, those volumes are changed to shared volumes as part of the import processing. If that import session is cancelled or fails, the Access Control List of the EqualLogic Group Manager shows the Multiple access field remains as shared. Since the job has failed or has been cancelled, it is assumed that the import on the same volume will be retried; therefore, the Multiple access field setting is not automatically reverted back to not shared.