When you unload a library, all the volumes in the library are removed and placed into the Historian catalog. This changes the state of the library to Off.
You can import the volumes from the Historian catalog back into the library at a later time.
Note - Make sure you are aware of the consequences before performing this procedure. Unloading the library stops all archiving activity for that library.
The Tape Library Summary page is displayed.
A message prompts you to confirm the unloading.