Okay, the problem is fixed, and it was (in retrospect :) an obvious one. The first thing was to upgrade to 4.3, as this allowed the Backup Server to back up more than one machine per tape. The *second* part was to update the firmware on the ATTO Fast/Wide/Diff card to the current version, (1.62), as this fixed the communications problems between Retrospect and the tape drive. So now, it scans all 18 DLT bays perfectly, and is backing up like quite the happy camper. -- There is no limit to the good you can do if you don't care who gets the credit. -General George C. Marshall -- ---------------------------------------------------------- To subscribe: [EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives: <http://list.working-dogs.com/lists/retro-talk/> Problems?: [EMAIL PROTECTED]