> The "mt" command is supposed to show compression state, but when > I attempt this I get nothing. EG. > > [root] # /bin/mt -f /dev/st0 compression > [root] # /bin/mt -f /dev/st0 compression on > [root] # /bin/mt -f /dev/st0 compression > [root] # /bin/mt -f /dev/st0 compression off > [root] # /bin/mt -f /dev/st0 compression > [root] # > > Note the absolute lack of any output after using the command, > regardless of whether I try to turn compression on/off or just > display compression status. The MAN file for mt says: >
Tony, I didn't see in your earlier postings what OS you're running, but I'm guessing linux. For my Redhat tape-server with HP DAT drives (1 DDS-2, 1 DDS-3) the mt command is "mt -f /dev/st0 datcompression". Perhaps that is why you're not getting any output from your mt commands when issuing only "compression"? BTW, I didn't change my jumper settings either, but I added the following to /etc/rc./local to ensure HW compression is off upon a reboot: /bin/mt -f dev/st0 datcompression off /bin/mt -f dev/st1 datcompression off Doug
