You can unhide a drive group on the controller. If you unhide a drive group, all of the virtual drives that are a part of this drive group become unhidden.
Perform the following steps to unhide a drive group:
Navigate to the Controller dashboard, and click Drive Groups (for example, DG_1).
Select a drive group that you want to unhide.
Navigate to Actions > Un Hide All Virtual Drives.
A message box appears, which asks you to confirm the operation.
Select the Confirm check box and click Yes to unhide the drive group.