Stephen Leonard Character wrote: > On Fri, Feb 20, 2009 at 3:15 PM, Stephen Leonard Character > <Stephen.Character at alorica.net> wrote: > >> I have a server set up with 4hdd using software raid. I have /boot on >> > a > >> raid1 on md0 , / on raid5 on md1, and swap on raid0 on md2. If one of >> > my > >> drives die, how to I recover? >> > > >> First, put the swap also on RAID1, you don't want part of your memory >> to become unavailable is a drive dies. Using RAID has no use then. >> > > >> If a drive dies nothing will happen, your system will continue to keep >> running (if you put your swap on raid1 that is). But make sure you >> configure mdadm to send you a mail when that happens, so you know a >> drive is gone. >> > > >> For recovery, just replace the disk, repartition it and re-add the >> partitions to the raid arrays and your are done. The disks will resync >> and then everything is back to how it was. >> > > >> Regards, >> Tim >> > > Thanks for the reply's, I'm assuming to do the repartitioning with fdisk > or gparted to repartition, what tools do I use to manage the software > raid? I.e. how do I go about changing the swap partition to raid1 and > re-add the partitions to the array? This system is for me to practice on > for my RHCT/E exams(too broke to pay for training) so I'm planning on > breaking one of the drives(just remove it) and add a new one for > practice. > > Thanks in advance, > Stephen > > Right, first partition the new drive then add it back to the Raid like this. mdadm /dev/md1 -a /dev/sdc3 Then the raid will start rebuilding. As posted early having swap on a raid zero is a bad idea . Dan