Migrating Archived Data to an Existing NAS File Server

You can migrate the archived data of a NAS file server to a different, existing NAS file server.


  1. From the navigation pane, go to Protect > Archiving.

    The File servers page appears.

  2. In the Name column, click the NAS file server that you want to migrate to (the destination).

    The NAS server page appears.

  3. In the upper-right corner of the page, click the action button action_button, and then click Migrate to this server.

    The Migration details dialog box appears.

  4. From the Source server list, select the NAS file server that you want to migrate (the source).


    The source server list does not display deconfigured clients. If the source server is already selected for migration, it will not be listed until the migration is complete.

  5. For Date and time of cutover, enter the date and time when you want to complete migration, initiate the last phase (migration workflow), and email the cutover approver.

    An email is sent to the cutover approvers to approve or deny the cutover. If the cutover approver denies the cutover, then you must reschedule the Date and time of cutover.

    If the cutover is approved, the following things occur:

    • Data aging on the source server is disabled for 90 days.

    • Backup and archive activity on the source subclient is disabled.

    • Backup activity on the destination subclient is enabled.


      After the cutover is approved, you cannot modify or reschedule it.

  6. In the Cutover approver(s) box, enter the users and user groups that you want to approve the migration.

  7. From the Access node list, select an access node that has no archiver driver installed to use for the migration.

  8. In the User name and Password boxes, enter the user credentials for the destination NAS shares.

  9. In the Target data starting path box, enter the share name or the volume name, without the server path, to store the migrated source data and source directory structure in.

    To configure multiple shares for migration, you need to select a subclient and complete the migration, and then configure migration for the next subclients that you select.


    After you specify the path, the only way to modify it is to cancel and then re-initiate the migration.

  10. If you do not want to create the backup sets and subclients that the source NAS file server has, then move the Migrate configuration toggle key to the left.

  11. Under Folders to migrate, select the content to migrate.

  12. Click Save.

What to Do Next

In the Migration status section of the destination NAS file server page, you can do the following:

  • Monitor the progress of the migration.

  • Edit the migration.

    You can select or deselect content paths for migration. If you deselect all the content paths of a subclient, then no content is migrated.

  • Cancel the migration.


After the migration is complete, the migrated NAS file server data is in the location that you specified in the Target data starting path box, and follows the retention criteria of the source subclient. In case of a Celerra source client, the access control lists (ACLs) of the data are not migrated. On the destination NAS server, the backupset name is appended to the source server name in the following format:\\source_server\backup_set.

The subclient that is created as a part of migration on the destination NAS server has properties such as storage policies, retention, and archiving rules that are similar to the properties of the source subclients.