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# Split 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 split paired volumes to where each holds separate valid copies of the data.

## Steps

To split 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 Split.

   Pair level:

   1. Select a device group, and click to open the Mirror Sessions List view.
   2. Select one or more pairs, and click Split.
5. To attach session options to the operation, select Advanced Options and select any number of options.
6. 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.