The reset library operation un-mounts the media mounted in all the drives, and resets the drives so that they are ready for use. The reset library option is useful when you have tapes stuck in the drives.
Note that the reset library operation will fail if there are jobs running on the library.
From the navigation pane, go to Storage >Tape.
The Tape page appears.
For the tape_storage for which you want to reset the library, click the Actions button and click Reset library.
Click Yes in the Confirm reset library prompt.
The library will be reset and a message will be briefly displayed in the upper right corner. An informational event will be logged in the Events page.