Media can only be deleted from Backup Exec when it is part of the Retired Media set.
Media can only be deleted from Backup Exec after it has been associated with the Retired Media set.
When deleted media is reused in Backup Exec, it is recognized as imported media. Before you can restore from the media, you must catalog it.
To delete media
Double-click the Retired Media icon, and then select the media that you want to delete.
Under General Tasks in the task pane, click Delete.
If Delete is unavailable, the media is not associated with the Retired Media set. You must associate the media with Retired Media before Delete is available.
Click Yes or Yes to All to delete the media that are displayed.