Fernando Vilas wrote: > On Friday 12 October 2007 09:45:10 Ronnie Gilkey wrote: > >> Hey all, >> >> I'm having some issues with a Benchmark DLT1 tape drive. What's >> happening is that a daily backup of about 20 GB is taking about 9 hours >> to run. This is way too long for that little bit of data. I've checked >> system usage throughout that period with sar reports and the system >> maintains a level of about 96% idle, so the system isn't busy. For most >> tape modern tape drives 20 GB should take about an hour to backup. I've >> also checked dmesg for errors, there aren't a lot just these: >> >> st0: Block limits 2 - 16777214 bytes. >> st0: Error with sense data: Info fld=0x2800, Current st09:00: sense key >> Not Ready >> Additional sense indicates Logical unit not ready,initializing cmd. >> required st0: Error with sense data: Current st09:00: sense key Not Ready >> Additional sense indicates Logical unit not ready,initializing cmd. >> required st0: Error 250400f4 (sugg. bt 0x20, driver bt 0x5, host bt 0x4). >> st0: Error 250400f4 (sugg. bt 0x20, driver bt 0x5, host bt 0x4). >> st0: Error on write filemark. >> st0: Error 250400f4 (sugg. bt 0x20, driver bt 0x5, host bt 0x4). >> >> Has anyone else had any problems with this type of tape drive? Any >> suggestions? I've posted the scsi_info & sdparm output below. >> >> Thanks, >> >> Ronnie >> > > I've seen errors like that when a card or cable is seated well enough to get > detected, but not function properly. I think I fixed it using "a bigger > hammer", but I have a cheap SCSI setup from 1996, and power cables that > occasionally vibrate loose. > > Also, uname -a? There may be a fix in a newer kernel. > > > ------------------------------------------------------------------------ > > _______________________________________________ > General mailing list > General at brlug.net > http://mail.brlug.net/mailman/listinfo/general_brlug.net > I'll give the re-seating a shot. The system is a Dell bundle (the system came w/ RHEL3 and the tape drive), and the kernel's 2.4.xx (not too old). And I'll check the change logs for driver updates.
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