I've already done the echo "scsi add-single-device 0 0 0 0" > /proc/scsi/scsi It failed to create the device. The 'st' module IS loaded, but says '(unused)'. If I do: Modprobe -r st modprobe st echo "scsi add-single-device 0 0 0 0" > /proc/scsi/scsi Would that do the trick? Should I remove the module first, then echo, then add? How risky is this to do on RHEL3 if it's a production server (24x7)? Thanks. Andrew Elliott wrote: > Problems with HP surestore DAT 72 drive, here's what happened: > > > > Drive died (/dev/st0) > > Removed drive > > Rebooted > > > > Drive no longer shows up in /dev/st0 or /proc/scsi/scsi If you've removed the drive and rebooted, of course the drive won't show in /proc/scsi/scsi, or as /dev/stX. There's nothing there to be scanned so there's nothing there to show. > > /sbin/lsmod shows that the drivers are still loaded > > But the st driver only creates entries in /dev/ for tape devices which are connected and turned on (i.e. reply to SCSI INQUIRY). > > Is there a way to rescan the scsi bus? > Yes. http://kbase.redhat.com/faq/docs/DOC-3942 > > If the device doesn't show in /proc/scsi/scsi do I need to recreate the > device? No, the devices (/dev/st) are created by the st device driver. Entries in /proc/scsi/scsi are created by the SCSI driver when it scans the SCSI bus. After connecting the drive, you rescan the SCSI bus. You may need to reload the st kernel module, not sure, it's a while since I've tried anything like this. -- Nigel Wade, System Administrator, Space Plasma Physics Group, University of Leicester, Leicester, LE1 7RH, UK E-mail : nmw@xxxxxxxxxxxx Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555 -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
