Date: Fri, 04 Apr 2008 17:03:09 -0700 From: LI Xin <delphij@delphij.net> To: FreeBSD-Chat mailing list <freebsd-chat@freebsd.org> Subject: Program to copy data from a bad disk? Message-ID: <47F6C1BD.1090806@delphij.net>
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[-- Attachment #1 --] 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. I have tried dd but with conv=noerror,sync it would just fill 0's for the whole block size (say, in order to get best speed you will want bs=128k or even larger, but that means that you will lose data when 1 of these 256 sectors is bad). Is there any program that is smarter which do a sector-to-sector copy for these failed blocks and use larger transfer buffer for others? Cheers, -- Xin LI <delphij@delphij.net> http://www.delphij.net/ FreeBSD - The Power to Serve! [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFH9sG9OfuToMruuMARCr4pAJ0XbDFbuPfE4iSmGNrgCU3OnRcUsQCghUNp pR/grkx0RqOimQacvvIUvbo= =4vuQ -----END PGP SIGNATURE-----
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