Date: Wed, 8 Nov 2006 08:22:50 -0600 From: Michael Hughes <mdhughes_us@hotmail.com> To: freebsd-questions@freebsd.org Subject: Re: Reading crashed SCSI disk Message-ID: <20061108082250.7f7a5094@logcabin.hem.com> In-Reply-To: <6.0.0.22.2.20061108071925.024c80f0@mail.computinginnovations.com> References: <200611060153.kA61rLNt026020@banyan.cs.ait.ac.th> <d7195cff0611070911u2dbae581w4090cf3b78875405@mail.gmail.com> <200611080524.kA85OKN2068574@banyan.cs.ait.ac.th> <6.0.0.22.2.20061108071925.024c80f0@mail.computinginnovations.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Wed, 08 Nov 2006 07:20:23 -0600 Derek Ragona <derek@computinginnovations.com> wrote: > 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 Try it with this command: dd if=/dev/da0s1 of=/somefile conv=noerror,sync -- Michael D Hughes Loghome living is the best! Michael@TheHughesLogcabin.net
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20061108082250.7f7a5094>