Scsi bus re-scan
I have an externel tape drive connected to an AHA-2910 Adaptec SCSI controller. If I manage to turn on the tape drive BEFORE linux boots (Mandrake 9.2) it shows up as /dev/st0 (nst0) and all works fine. However, if I fail to do it in time then /dev/st0 disappears. I want to be able to turn on the tape drive, rescan the bus and have /dev/st0 re-appear. How can I do this (short of rebooting linux)?