If you choose to recover with an autochanger, review these issue about recovering data prior to restoring the server indexes and configuration files:
If the autochanger has more than one drive, use the first drive for recovery.
You cannot use the full functionality of the autochanger while restoring the server indexes and configuration files. mmrecov does not support autochangers; this command only support stand-alone devices.
The robotic device does not locate, load, and mount volumes automatically. You must use the Backup Mount and Unmount buttons and the autochanger control panel to mount and unmount volumes. If you use the autochanger control panel, Backup does not have a record of where the volumes have been moved, so inventory the autochanger contents after you complete the recovery.
When you recover the server indexes and configuration files, you recover the autochanger configuration files as they existed during the last backup, including the inventory of the autochanger. If you moved backup volumes inside the autochanger during the disaster recovery, the location of the volumes probably no longer matches the recovered inventory contents. After the recover operation, inventory the autochanger.