Because I always search Internet for some command, this post is made just to be mine backup comprehensive place for all important tape commands in Linux.
Save to tape
1. Rewindmt -f /dev/nst0 rewind
2. Move to end of last block
mt -f /dev/st0 eod
3. Save and compress content to tape
tar cvf /dev/nst0 ./bg*.gz
4. Rewind
mt -f /dev/nst0 rewind
Take the tape to treasury
Eject tapemt -f /dev/st0 eject
Restore from tape
1. Rewindmt -f /dev/nst0 rewind
2. Move to block from which you want to restore (0,1,2,3 etc.- number of block)
mt -f /dev/nst0 fsf 1"1" is second block, because it starts from 0.
3. Restore from tape to current directory
tar xvf /dev/nst0
The end
Maybe someone find them useful too.Cheers!