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Date:      Wed, 28 Oct 1998 12:06:17 -0800
From:      Mike Smith <mike@smith.net.au>
To:        Harold Gutch <logix@foobar.franken.de>
Cc:        stable@FreeBSD.ORG
Subject:   Re: HD problems 
Message-ID:  <199810282006.MAA00390@dingo.cdrom.com>
In-Reply-To: Your message of "Wed, 28 Oct 1998 19:00:05 %2B0100." <19981028190005.A426@foobar.franken.de> 

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Your disk is taking longer to handle the error than we allow it to. Your
best bet at this point is probably to mount the partition forced
readonly (mount -f -o ro), copy everything meaningful off the the
partition, then dd zeroes over it to give the drive a chance to remap 
the sector(s) in question.


> 
> last night all of a sudden my box halted, without panicing or
> rebooting.
> After pressing the reset-key, it came back up, and didn't manage
> to finish fscking a partition on an IDE-disk of mine. Phases 1-4
> of fsck passed as normal, but then I got the following
> errormessages:
> 
> ** Phase 5 - Check Cyl Groups
> wd1: interrupt timeout:
> wd1: status 58<rdy,seekdone,drq> error 0
> wd1: interrupt timeout:
> wd1: status 50<rdy,seekdone> error 1<no_dam>
> 
> the last 4 lines being repeated every 30s or so.
> 
> At this point fsck seemed to repeatedly try to access the same
> part of the disk over and over again without ever timeouting or
> stopping.
> I watched this for about 10 minutes, then rebooted again, booted
> in singleuser-mode, removed the appropriate entry from my
> /etc/fstab (luckily this happened on no 'vital' disk) and booted
> again.
> 
> bad144 -s -v wd1 behaved very similar to fsck, from the sounds the
> disk made, I would say that it tried to access one part of the
> disk over and over again.
> I haven't freed up enough space to try dd'ing the disk into a
> file, then mounting it via a vnode, to at least partially save
> some data, but I hope to achieve this later on tonight.
> Is there anything else I'm able to do to fix the disk (at least
> to get to know which parts of it are broken, mark the bad sectors
> and then do a fsck over the rest or something alike) or can I
> just hope that the dd will save some of the data ?
> 
> -- 
> bye, logix
> 
> <Shabby> Sleep is an abstinence syndrome wich occurs due to lack of caffein.
> Wed Mar  4 04:53:33 CET 1998   #unix, ircnet
> 
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> 

-- 
\\  Sometimes you're ahead,       \\  Mike Smith
\\  sometimes you're behind.      \\  mike@smith.net.au
\\  The race is long, and in the  \\  msmith@freebsd.org
\\  end it's only with yourself.  \\  msmith@cdrom.com



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