Volume is not in dump format

I've never had a problem restore files to solaris boxes; however, I'm trying to restore a linux backup, which I've never done. This is the message I got. amrestore: 79: restoring aimserver._dev_hda2.20051216.0 Volume is not in dump format amrestore: 80: reached end of information I see the tape

switching between drives

I've been running Amanda (VERSION="Amanda-2.4.3") on a tape server that has two drives, but I've been using only one of the drives. Anyway to configure Amanda to use a different drive each night? --myron