# Creating a User-Defined Subclient

If you need to back up specific databases, you can do that by creating a user-defined subclient.

## Procedure

1. From the Command Center navigation pane, go to Protect > Exchange.

   The Exchange page appears.

2. Click an Exchange database.

   The Exchange Database page appears.

3. On the Subclients tab, in the right area of the page, click Add.

   The Add subclient dialog box appears.

4. In the Name box, enter a name for the subclient.

5. In the Plan box, select a backup plan.

6. In the Data backup streams box, enter the maximum number of streams that are required for running a backup operation.

   By default, the number of streams is 2.

7. Under Client, select the databases that you want to add to the user-defined subclient:

   1. Click Add content.

      The Add new content dialog box appears.

   2. From the list, select the databases that you want to include in the subclient. You can use the search function to find specific databases.

   3. Click Add.

8. Under Server details, specify whether to select the backup source manually or automatically:

   - To manually select the backup source, select Manual selection, and then, for each database, select the server that you want to use as the backup source.

   - To have the software automatically select the backup source, select Automatic selection, and then specify the type of server to use:

     - To use a passive server, select the Backup from passive copy check box.

     - To use the active server when no passive server is available, select the Backup from active copy if no passive copy is available check box.

     - To run backup operations on the server that is least likely to become active in a failover case, select the Use last activation preference to select passive copy check box.

9. If you want block-level backup operations to use the backed-up databases for live browse, under Advanced options, select Optimize for message level recovery.

   You can also enable block-level backups later.

10. Click Save.

## Result

The user-defined subclient appears on the Exchange Database page, under Subclients.

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