Tapes being marked as read-only during backup

[AnalogKidd]

I have a Networker 7.1 for Windows 2003 job backing up a remote server. The tapes are 130GB DLT's. The job backs up about 5 gigs or so, then displays this message:

Tape2 moving: fsf 6: drive status is The end of data was reached.

Then it marks the tape read-only and nothing else can write to the tape. If I manually set the tape to "appendable" and restart the backup, I immediately get the same error, and it marks the tape read-only again.

I have other jobs running on this drive under different Groups, and they all work fine.

Thanks in advance for any help,
David

 

[TDun]

Sounds like the tape is duff.
Confirm th firmware levels of the drive are ok first.
Try de-gaussing the tape and then label it again.