To back up a subclient with IntelliSnap, you must enable IntelliSnap and select a snapshot engine.
From the navigation pane, go to Protect > Databases.
The Instances page appears.
Click an instance name.
The instance details page appears.
In the Subclient section, click a subclient.
The subclient details page appears.
In the Snapshot Engine section, click Edit.
The Edit snapshot engine dialog box appears.
Select Enable snapshot engine.
The Engine name list appears.
From the Engine name list, select a snapshot engine, and then click Save.