Windows Server 2003 Backup cancels after "attempting" to mount tape.

Hello,

We just got our Windows 2003 Standard Edition server
running and are trying to work out the kinks in the
backup. Before the server was in the producion
environment we tested and the backup worked fine...I
backed up the C:\ drive to test and worked like a charm.

Now for some reason when we put the tape in and schedule
a job (backup of all 3 drives not just C:\) it starts to
do it but then stops. When the time comes for the job to
start the screen pops up and says mounting device or
mounting tape (cant remember exactly) and then the window
just goes away after a few seconds and does not continue.

The tapes were previously used in ARCserveIT on the old
server which we replaced which was running NT4. I assume
since it worked fine when I tested with the C:\ drive
that it would work fine but do the tapes have to be
formated in some way or another? If so how do you do
that?

Any insight would be helpfull...thank you!

 

It appears at this point that we have resolved the issue,
it was a problem with the way we were having it label the
tapes and every time we were doing a backup job we were
telling it that it was a new tape and it was getting
confused, we removed all that off of the tapes and labled
it correctly and its going as we speak.