Extract from Admin Guide:
Deleting volumes
You can delete volumes from the NetBackup configuration. For example, if any of the following situations apply, you may want to delete the volume:
■ A volume is no longer used and you want to recycle it by relabeling it with a different media ID.
■ A volume is unusable because of repeated media errors.
■ A volume is past its expiration date or has too many mounts, and you want to replace it with a new volume.
■ A volume is lost and you want to remove it from the EMM database.
After a volume is deleted, you can discard it or add it back under the same or a different media ID.
Before you delete and reuse or discard a volume,
ensure that it does not have any important data. NetBackup and Storage Migrator volumes have an extra safeguard against accidental deletion. You cannot delete such volumes if they are still assigned.
To deassign a volume, see “Deassigning volumes” on page 535.
To delete volumes
1. In the NetBackup Administration Console, select Media and Device Management > Media.
2. In the Volumes pane, select the volumes that you want to delete.
3. Select Edit > Delete.
4. In the Delete Volumes dialog, click OK.
