When you create a new file system client, a default backup set is created automatically, which manages backup and restore operations for the client.
You can create additional backup sets to provide a separate administration point for a specific group of subclients.
From the navigation pane, click Manage > Servers > server > File System. Then, in the upper-right of the page, click Add backup set.
The Create New Backup Set dialog box appears.
In the Backup Set Name box, type the backup set name.
From the Plan list, select the plan that the software uses to protect the data.
To make the backup set the default, select the Make this the default backupset check box.
The software creates the backup set.
What to Do Next
Create subclients for the data that you want to protect.