JBS%DEEP-THOUGHT@mit-eddie.arpa (Jeff Siegal) (02/28/86)
We are running one of these here on a VAX-11/750. The performance is HORRIBLE. When one uses cat to stuff a file out /dev/mt0, things don't seem too bad -- the drive receives data fast enough to go into streaming mode. If one instead writes to the raw device, /dev/rmt0, the drive goes into start-stop simulation mode (uh, looks like the data isn't here yet. Back up and reposition the tape). Needless to say, when this happens, performance goes out to lunch. Since we use this drive primarily for backups, and the /etc/dump program needs to write to the rmt0 device, this is rather important to us. Any ideas? Jeff Siegal -------