I'm using Redhat Linux 5.0 with a scsi 4mm tape drive.
I don't have any problems writing to or reading from the tape.
To backup I can type: tar -czvSf /dev/tape /home/mag
To restore I can type: cat /dev/tape >foo.tar.gz
then I can type: gzip -d foo.tar.gz
then I can type: tar xvf foo.tar
and I'm back in business.
I have heard that tar is not a good backup tool to use if the filesystem is changing.
Is it any part of the filesystem that corrupts the backup? Or is it only a problem if the file being backed up changes?
Is their a failsafe method of backing up the files to a tape drive? dump? zip?