HP T4 (t4000) 4/8gb Tape Drive not using full capacity
I am running FC4, fully updates (with nightly YUM). I have Kernel 2.6.14-1.1637_FC4 .
I am using a HP T4000 SCSI tape drive for backup purposes. It holds 4GB uncompressed and is supposed to do 8GB Compresses (Yes, I know this is small, but it suits my needs jut fine).
I backup with the tar command (tar cvf /dev/st0 /home/mydir).
The problem: This tape drive is supposed to do 8GB compressed. (Back in the miry day of Windows, I seem to remember the HP Colorado Backup GUI had some option I had to select to make it compress? Its been a while....)
How do I tell this tape drive to "do compression" so I can get a full 8gb onto the tape?
Thank you for your help.