At Thu, 2 Jul 2009 13:18:43 -0400 CentOS mailing list <centos at centos.org> wrote: > > >If /dev/md1 is made out of /dev/sda2 and /dev/sdb2, it will not work, > >as those partitions will still be the same size as they were before... > > > I have md0 as the boot, md1 as the rest. Inside md1 are all my lvm > partitons. > The grow command is supposed to expand the size of that md1 from its current > 200+GB to fill the rest of the 500gb drive. > > I thought you could then expand the lvm partions inside of that. > > If the grow command does not make the raid device larger, then what does it > do? It only works once you have replaced all of the smaller drives with larger ones. If /dev/sdc is your spareset drive, when you replace it you'd partition it (manually) to have a larger #2 partition. Then you would fail over say sdb to sdc and make sdb the spareset drive and then pull it and replace it with a large disk and partition it like sdc, then you would fail sda over to sdb and replace sda with a large disk, and partition it like sdc. NOW you can grow the raid set & LVM vg. > > > # cat /proc/mdstat > Personalities : [raid1] > md0 : active raid1 sdc1[2](S) sdb1[1] sda1[0] > 104320 blocks [2/2] [UU] > > md1 : active raid1 sdc2[2](S) sdb2[1] sda2[0] > 245007232 blocks [2/2] [UU] > > unused devices: <none> > > > Thanks for the input...glad I posted before I did this. > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > > -- Robert Heller -- 978-544-6933 Deepwoods Software -- Download the Model Railroad System http://www.deepsoft.com/ -- Binaries for Linux and MS-Windows heller at deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/