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Date:      Tue, 16 Apr 1996 11:54:05 +0930 (CST)
From:      Michael Smith <msmith@atrad.adelaide.edu.au>
To:        Mike.Jenkins@ncts.navy.mil (Mike Jenkins)
Cc:        questions@freebsd.org
Subject:   Re: wd disk errors (resend)
Message-ID:  <199604160224.LAA21087@genesis.atrad.adelaide.edu.au>
In-Reply-To: <9604151957.AA00402@pegasus.ncts.navy.mil> from "Mike Jenkins" at Apr 15, 96 02:57:01 pm

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Mike Jenkins stands accused of saying:
> I'm getting the enclosed disk errors on a partition of the wd0 disk.
> Are there any utilities to correct it?

Warranty return on the disk.  It's not supposed to be defective 8)

> There were no problems during installation.  Does the installation
> do a low level format?

No.  low-level formatting an IDE disk requires vendor-specific and 
highly proprietary software.

> Apr 12 08:23:43 free /kernel: wd0s2f: soft error reading fsbn 868768 of 868752-868767 (wd0s2 bn 1327520; cn 658 tn 15 sn 47)wd0: status 58<seekdone,drq> error 40<uncorr>
> Apr 12 08:23:46 free /kernel: wd0s2f: soft ecc reading fsbn 827087 of 827072-827087 (wd0s2 bn 1285839; cn 637 tn 26 sn 9)wd0: status 5c<seekdone,drq,ecc_cor> error 40<uncorr>
> Apr 12 08:23:50 free /kernel: wd0s2f: soft ecc reading fsbn 805943 of 805888-805999 (wd0s2 bn 1264695; cn 627 tn 10 sn 33)wd0: status 5c<seekdone,drq,ecc_cor> error 40<uncorr>
> Apr 12 08:23:57 free /kernel: wd0s2f: hard error reading fsbn 806177 of 806112-806223 (wd0s2 bn 1264929; cn 627 tn 14 sn 15)wd0: status 59<seekdone,drq,err> error 40<uncorr>
> Apr 12 08:38:37 free /kernel: wd0s2f: hard error reading fsbn 805474 of 805440-805551 (wd0s2 bn 1264226; cn 627 tn 3 sn 5)wd0: status 59<seekdone,drq,err> error 40<uncorr>
> 

It looks like your disk is pretty ill.  Look at the 'badsect' command for a
possible means of avoiding the problem.  For the purpose of the 
badsect command, the 'bad sector numbers' are the 'fsbn' numbers in
the error messages above.

-- 
]] Mike Smith, Software Engineer        msmith@atrad.adelaide.edu.au    [[
]] Genesis Software                     genesis@atrad.adelaide.edu.au   [[
]] High-speed data acquisition and      (GSM mobile) 0411-222-496       [[
]] realtime instrument control          (ph/fax)  +61-8-267-3039        [[
]] Collector of old Unix hardware.      "Where are your PEZ?" The Tick  [[



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