I cant suggest why this may be happening, but does it help to fix this online if you send commands to /proc/scsi to remove and then add-back the offending device? See 'man proc' and look for the /proc/scsi/scsi section I notice the man pages only show the 'add-single-device' command, but I know that 'remove-single-device' also works (on FC3 anyway) as I use them both for hotplugging SCSI disks. Cheers, Terry. >I have a server which every so often "loses" its SCSI tape drive. >Dumps stop working a command like "mt rewind" returns an error >"/dev/tape: No such file or directory". > >The message log shows > Aug 3 04:56:40 mail kernel: scsi1:0:5:0: Attempting to abort cmd c1bda980: 0x0 0x0 0x0 0x0 0x0 0x0 > Aug 3 04:56:40 mail kernel: scsi1:0:5:0: Command found on device queue > Aug 3 04:56:40 mail kernel: scsi: Device offlined - not ready after error recovery: host 1 channel 0 id 5 lun 0 > Aug 3 04:56:40 mail kernel: st0: Error 20000 (sugg. bt 0x0, driver bt 0x0, host bt 0x2). > >If I unload and reload the st module, the message log shows > Aug 5 16:41:19 mail kernel: st: Version 20041025, fixed bufsize 32768, s/g segs 256 > Aug 5 16:41:19 mail kernel: Attached scsi tape st0 at scsi1, channel 0, id 5, lun 0 > Aug 5 16:41:19 mail kernel: st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 1048575 > >Which looks like it's finding the drive fine. But attempts to use >/dev/tape (or /dev/st0) still fail. > >I have no other SCSI devices (my disks are on an i2o RAID card), but >I can't remove the aic79xx module for the SCSI bus the tape is on -- >it reports "ERROR: Module aic79xx is in use" and I can't work out >what's using it. > >I can fix the problem by rebooting, but it would be nicer if I didn't >have to. > >Any suggestions? > >Danny. >Network Administrator >School of Medical Sciences >University of Sydney > >-- >fedora-list mailing list >fedora-list@xxxxxxxxxx >To unsubscribe: http://www.redhat.com/mailman/listinfo/fedora-list >
