Thanks for the help. I used ddrescue to grab /dev/hdb and am now using e2retrieve. I am somewhat optimistic that there will be at least partial recovery ;). Have a great remainder of the weekend, Andy Gajetzki On 1/21/06, David Greaves <david@xxxxxxxxxxxx> wrote: > Andy Gajetzki wrote: > > >Hi there, I recently had a disk go bad in a linear RAID built with > >mdadm. The particular disk that failed was the last device of the > >RAID. I am curious about how devices are utilized in a linear RAID. > >Would the md be filled sequentially from device 1 upto 5? In other > >words, what are the odds that the last disk was "empty" when it went > >south? > > > >Thanks for your time, > > > > > Linear raid does provide sequential blocks on disks 1...n > > So as long as the filesystem you used was something like 'dd > of=/dev/md0' then you'd be OK <grin> > > However if you made a 'proper' filesystem on it then the disk usage > would vary depending on whether it was ext2,ext3,xfs,jfs etc etc > > If the bad disk is totally gone then you're at the mercy of fs deign and > fsck - otherwise try and use ddrescue to get an image of it (and the > other disks). Make a 'safe' image and a 'working' image of the bad disk > before attempting repair on 'working' images. > (Of course you need lots of disk space so you may need new disks - > depends how valuable your data is) > > HTH > > David > > -- > > -- Andrew Gajetzki | (403) 330-6552 | Fax: (780) 675-9402 | www.gajetzki.com ---------------------------------------------------------|------------------ XML Architect - Internet Scientific Publications LLC. | www.ispub.com Editor in Chief - Lethbridge Undergrad. Research Journal | www.lurj.org Lead Developer - phirOSS Open Source Software | www.phiross.org Network Analyst - GSchools Inc. | www.gschools.com ---------------------------------------------------------|------------------ - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
