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# Recover a migration session

Unisphere supports a migration application to provide a method for migrating data from a source array to a target array.

## Prerequisites

See Roles and associated permissions to determine the user roles that can perform this task.

The state of the migration session is CreateFailed, CutoverFailed , CancelFailed, MigrFailed, or RevertFailed.

## About this task

This procedure explains how to recover a data migration session from a failed state.

See Understanding migration for additional information.

To recover a migration session:

## Steps

1. Select the storage system.
2. Select DATA PROTECTION > Migrations.
3. Select the Sessions tab.
4. Select the storage group, click , and click Recover.
   For a migration where the source is SAN WWNs, the source field displays the serial number of the source array.
5. (Optional) Select Force in the Advanced Options section.
   The force flag is meant for cases where the state of the migration session is CreateInProg, CancelInProg, CutoverInProg, RevertInProg, or CommitInProg.
6. (Optional) Select SymForce in the Advanced Options section.
7. Review the summary and do one of the following:
   - Click Run Now to perform the operation now.
   - Expand Run Now and click Add to Job List to add this task to the job list, from which you can schedule or run the task at your convenience. For more information, see Schedule jobs and Preview jobs.