From owner-freebsd-questions@FreeBSD.ORG Wed Nov 8 13:22:23 2006 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7A75616A412 for ; Wed, 8 Nov 2006 13:22:23 +0000 (UTC) (envelope-from derek@computinginnovations.com) Received: from betty.computinginnovations.com (dsl081-227-250.chi1.dsl.speakeasy.net [64.81.227.250]) by mx1.FreeBSD.org (Postfix) with ESMTP id EF0C043E11 for ; Wed, 8 Nov 2006 13:21:21 +0000 (GMT) (envelope-from derek@computinginnovations.com) Received: from p28.computinginnovations.com (dhcp-10-20-30-100.computinginnovations.com [10.20.30.100]) (authenticated bits=0) by betty.computinginnovations.com (8.13.6/8.12.11) with ESMTP id kA8DKXw9051330; Wed, 8 Nov 2006 07:20:34 -0600 (CST) Message-Id: <6.0.0.22.2.20061108071925.024c80f0@mail.computinginnovations.com> X-Sender: derek@mail.computinginnovations.com X-Mailer: QUALCOMM Windows Eudora Version 6.0.0.22 Date: Wed, 08 Nov 2006 07:20:23 -0600 To: Olivier Nicole , illoai@gmail.com From: Derek Ragona In-Reply-To: <200611080524.kA85OKN2068574@banyan.cs.ait.ac.th> References: <200611060153.kA61rLNt026020@banyan.cs.ait.ac.th> <200611080524.kA85OKN2068574@banyan.cs.ait.ac.th> Mime-Version: 1.0 X-ComputingInnovations-MailScanner-Information: Please contact the ISP for more information X-ComputingInnovations-MailScanner: Found to be clean X-ComputingInnovations-MailScanner-From: derek@computinginnovations.com X-Spam-Status: No Content-Type: text/plain; charset="us-ascii"; format=flowed X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: Reading crashed SCSI disk X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 Nov 2006 13:22:23 -0000 If the drive has a physical failure in the mechanism or media, you may need to send it off to ontrack and have them try to recover the data. -Derek At 11:24 PM 11/7/2006, Olivier Nicole wrote: > > > I am wondering if there is a way to read the physical blocks (those > > > that are readable) and save the data, from that I could be able to > > > rebuild some of the mailboxes. > > > > dd if=/scsi_drive of=/some/file/name > > > > Should read anything readable, though without bs=xxx it may be > > quite slow. You can usually then mount the file via mdconfig(8). > > If the partition table is intact you can specify that instead of the > > whole disk. This can make the fiddly bit with trying to figure out > > exactly what part will mount under md(4). > >I tried > >dd if=/dev/da0s1 of=/somefile > >dd stopped after a short while with I/O error, after a number of SCSI >reading errors. > >best regards, > >Olivier >_______________________________________________ >freebsd-questions@freebsd.org mailing list >http://lists.freebsd.org/mailman/listinfo/freebsd-questions >To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" > >-- >This message has been scanned for viruses and >dangerous content by MailScanner, and is >believed to be clean. >MailScanner thanks transtec Computers for their support. -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean. MailScanner thanks transtec Computers for their support.