You can reset the mount time of the drive. Reset the mount time to zero after you perform a manual cleaning.
To reset the mount time
In the NetBackup Administration Console, expand Media and Device Management > Device Monitor.
If an Enterprise Disk Option license is installed, select the Drives tab.
Select Actions > Reset Mount Time. The mount time for the selected drive is set to zero.
If you use the Shared drive (Shared Storage Option), do the following:
In the list of hosts that share the drive, choose only one host on which the function applies.