linux-kernel - Re: Scsi errors with Megaraid 300-8x

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Message-ID: <44EDBC39.2070207@rtr.ca>
Date:	Thu, 24 Aug 2006 10:48:25 -0400
From:	Mark Lord <lkml@....ca>
To:	Johan Groth <johan.groth@...ux-grotto.org.uk>
Cc:	Justin Piszcz <jpiszcz@...idpixels.com>,
	linux-kernel@...r.kernel.org
Subject: Re: Scsi errors with Megaraid 300-8x

Johan Groth wrote:
> Justin Piszcz wrote:
>> Run badblocks in r+w mode on the bad disk and it will force the disk 
>> to re-allocate the bad sector if it can.
>>
>> Justin.
> 
> Is that possible to do in a non-destructive way? I don't want to loose 
> all data and apparently I can't back it up either :(.

Yes, it is perfectly doable, but I don't think anyone has yet bothered
to release a utility that actually does it.

OPPORTUNITY FOR FAME AND FORTUNE! (okay, maybe just some fame):
=================================
Hack the existing smartctl code to read out the failed sector numbers,
and then issue single-sector read-overwrite to each of those bad sectors.

Very simple code.  I'll do it myself eventually, but please beat me to it!

Cheers
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