You can update the Commvault software on an existing file server.
From the navigation pane, go to Protect > File Servers.
The File Servers page appears.
In the Actions column for the server, click the action button , and then click Update software.
The Confirm software update dialog box appears.
To allow the servers to reboot if required during installation, move the Reboot if required toggle key to the right.
To receive an email notification about the job completion status, select the When the job completes, notify me via email check box.
Click Yes to confirm the update operation.