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# Restore BCV pairs

TimeFinder/Mirror is a business continuity solution that enables the use of special business continuance volume (BCV) devices.

## Prerequisites

- See Roles and associated permissions to determine the user roles that can perform this task.
- TimeFinder/Mirror is not supported on storage systems running PowerMaxOS 10 (6079).
- TimeFinder operations are not supported on Open Replicator control volumes on storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978.

## About this task

This procedure explains how to copy data from the BCV volumes to the standard volumes.

## Steps

To restore BCV pairs:

1. Select the storage system.
2. Select DATA PROTECTION > Device Groups.
3. Click the TimeFinder Mirror tab to open the TimeFinder Mirror list view.
4. Do the following, depending on whether you want to perform this operation at the group level or the pair level:

   Group level:

   Select a device group, and click Restore.

   Pair level:

   1. Select a device group, and click to open the Mirror Sessions List view.
   2. Select one or more pairs, and click Restore.
5. Select a Restore Type:
   - Incremental—Copies to the standard volume only the new data that was updated on the BCV volume while the BCV pair was split.
   - Full—Copies the entire contents of the BCV volume to the standard volume.
6. If performing a full establish at the pair level, do the following:
   1. Click Set Pairs to open the Set TimeFinder Mirror Pairs dialog.
   2. Select a Source Volume and a Target Volume, and click Add to make them a pair. Repeat this step as required.
   3. Click OK to return to the Restore - Mirror Pair dialog.
7. To attach session options to the operation, select Advanced Options and select any number of options.
8. 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.