I'm trying to use tape backup with CA ArcServe Backup on a windows server 2003 box, and I keep running into errors. I can't seem use the DLT tape drive. Whenever I go to use it, it's either offline, busy, or the tape format is unrecognized. I've put in two (what should be) new tapes and had the same problems. When I try to format the tape, I usually get a notice that the drive is busy. I'm new to DLT tapes and high-end backup software. I'm guessing there is something here I don't understand about the environment that is causing these problems.
I should add that I tried using the built-in Wiindows NTbackup to write to the tape and I got an error that the media couldn't be located. I took that to mean the software was unhappy with the tape format or the tape drive was currently inacessible (busy?).
This tape drive is not new, it's an external Compaq 20/40 DLT SCSI tape drive, so can't be certain the tape drive isn't the problem.