You need to plug in a new drive of equal or greater size, create on this new drive a partition for each raided partitions(if you RAIDed the partitions rather than the whole disk) that is at least the same size as the original partitions, at it simplest you can try something like: sfdisk -d /dev/sda | sfdisk /dev/sdb now you can add the new disk partitions to the raid array: mdadm --add /dev/<array> /dev/<new partition to add to the raid array> mdadm --detail /dev/md0(or whatever) will give you more information about the raid array, which will help you determine which partition will go into which array. for hardware raid, that is dependent on the raid controller. On Mon, Jan 14, 2013 at 12:03 PM, Thomas Rieff <trieff at greencaremankato.com>wrote: > TCLUG, > I have an Ubuntu 12.04 server that one of the drives in the Raid 1 > configuration has failed. > How do I replace that drive and rebuild it??? > Tom > > Thomas Rieff > GreenCare > 1717 3rd Avenue > Mankato, MN 56001 > (507) 344-8314 Office > (507) 344-8316 Fax > (507) 381-0660 Cell > _______________________________________________ > TCLUG Mailing List - Minneapolis/St. Paul, Minnesota > tclug-list at mn-linux.org > http://mailman.mn-linux.org/mailman/listinfo/tclug-list > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.mn-linux.org/pipermail/tclug-list/attachments/20130114/ac00d9a5/attachment.html>