# Creating Cassandra Subclients

A subclient is a logical entity that contains the data that needs to be backed up. You can back up specific data at a particular time or frequency by adding the data to a user-defined subclient.

## Before You Begin

1. Create a backup plan.

   This backup plan determines when the software automatically backs up the data files. For more information, see Creating a Backup Plan.

2. Install CockroachDB Package on Cluster Nodes for the Cassandra data.

## Procedure

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

   The Instances page appears.

2. Click an instance name.

   The selected instance page appears.

3. In the Data center section, click Add data center.

   The Add data center dialog box appears.

4. In the Name box, type the subclient name.

5. From the Plan list, select a backup plan.

6. To add the content that you want to include in the subclient, click Browse.

   The Browse content dialog box appears.

7. Select the data centers that you want to add as contents to the subclient, and then click OK.

8. Click Save.

## Result

The software creates the subclient.

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