Date: Wed, 20 Sep 2000 13:55:46 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: Edward Elhauge <ee@uncanny.net> Cc: freebsd-hackers@FreeBSD.ORG, freebsd-isp@FreeBSD.ORG Subject: Re: Frustration with SCSI system Message-ID: <Pine.LNX.4.21.0009201354590.3558-100000@zeppo.feral.com> In-Reply-To: <200009201958.MAA45703@ns2.uncanny.net>
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Keep your disk cool. If you're getting MEDIUM errors, you're disks are getting toasted. I'm also in SF, and I plain mostly have been shut down the last two days. > Hello Freebsders, > > I've been using FreeBSD over the last 6 years (since I switched from > NetBSD) to run a small ISP out of my basement. > > I've had about six disk crashes in as many years and still don't know how > to work reliably with them. > > I have installed UPS boxes on each machine and that seems to have lowered > the incidence of failure, but failures still happen; yesterday during our > heat wave in the San Francisco area (possible brownouts also) I had > another. > > OK, so you have to expect these things; but I never seem to find an easy > way to recover these systems. The only thing that I've seen work has been > to mount the disk on another system, back it up, reformat the drive, copy > things back over and find out what was trashed. THERE MUST BE A BETTER > WAY. > > It seems like SCSI systems can't use the bad144 program. They are supposed > to autorecover on bad sectors, but every system that I've had to recover > seems to be in a state where the bad sectors aren't remapping. I've tried > buying top of the line hardware, and it does work faster, but no more > reliably than the cheap stuff. Once you get in this state it is difficult > to mount the partitions so as to recover what is there. > > I really need some good advice here. Do I need to buy RAID hardware for > each and every server in my network? Is there some way to force the SCSI > system to remap bad drives? > > The error I'm getting is: > MEDIUM ERROR info:1010f asc:14,1 > > My configuration is: > 1) Pentium-S 100 Mz > 2) 128M > 3) Adaptec 2940 Ultra/Ultra SCSI with Bios 1.25 > 4) Seagate ST3437 4GB > 5) FreeBSD 3.4 > > Any advice on how to efficiently bring my server back up or how I can > reengineer my system to avoid this in the future, will be greatly > appreciated. > -- > Edward Elhauge <ee@uncanny.net> -- Uncanny Inc., San Francisco > "War is like love; it always finds a way." -- Bertold Brecht > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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