About vaulting media
When you vault media, you send backup images off site to a protected storage location. NetBackup Vault simplifies the processes of image duplication, off-site storage, and off-site retrieval for both storage administrators and systems operators. Its purpose is to assist in disaster recovery by creating duplicate copies of backup tapes and of the NetBackup catalog.
If backup tapes are destroyed at a primary datacenter location, Vault ensures that copies of selected backups are available at an off-site location. Vault keeps track of the copies and requests these tapes to be returned from the off-site location after a specified period of time.