A user group is a set of users who perform the same tasks. Create user groups to simplify the administration of the Commvault environment.
From the navigation pane, go to Manage > Security.
The Security page appears.
Click the Users groups tile.
The Users groups page appears.
In the upper right of the page, click Add user group.
In the Add user group dialog box, provide the user group information.
To specify the amount of data that members of the user group can back up, do the following:
Select the Quota enabled check box.
In the Quota limit box, type the maximum number of gigabytes that members of the group can back up.