Errors Creating the Backup

If you see errors on the system console when trying to create a backup, some causes are:

The tape is not locked in the drive. You may see an error message similar to this:
/dev/nrtape rewind 1 failed:Resource temporarily unavailable
Make sure the tape is locked in the drive properly. See your Owner's Guide if you do not know how to lock the tape in the drive.
File permission problems. These are especially likely with file-oriented backup programs; make sure you have permission to access all the files in the hierarchy you are backing up.
The drive requires cleaning and maintenance.
Bad media; see "Testing for Bad Media".

If you encounter problems creating backups, fixing the problem should be your top priority.