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Date: Sat, 5 Apr 2008 04:04:29 +0000
From: Alexey Dokuchaev <danfe@FreeBSD.org>
To: d@delphij.net
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Cc: FreeBSD-Chat mailing list <freebsd-chat@freebsd.org>
Subject: Re: Program to copy data from a bad disk?
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On Fri, Apr 04, 2008 at 05:03:09PM -0700, LI Xin wrote:
> Hi,
> 
> Recently my hard drive goes bad again, which has a lot of bad sectors 
> for unknown reasons.  I am looking for some software that is capable of 
> doing a sector-to-sector copy of the hard drive.

Have you tried feeding the disk to some sort of manufacture's tools
(like Seatools in case of Seagate)?  I also had positive experience with
Drive Fitness Test (DFT) and Victoria (hdd-911.com).

HTH,

./danfe