At Thu, 10 Dec 2009 09:39:25 -0600 CentOS mailing list <centos@centos.org> wrote:
> > I have CentOS 4.x installed on a single 500GB SATA drive. Drive is > about 10 percent used. I would like to migrate to software RAID 5 > without reinstalling the OS. Was thinking 3 500GB drives. Is that > possible or must I reinstall? If you can install 4 drives, eg you have 4 bays and 4 SATA connections, yes, it is easy. Just install the three new drives (to SATA port 2, 3, and 4), create the RAID-5 array (actually you'll need one small RAID-1 array for /boot, so you'll create two RAID sets: a small RAID-1 for /boot and the rest for the RAID-5) and copy everything over. You'll need to re-install grub (using grub-install) and then shutdown the machine and move the drive connectors around so that the new drives are 1, 2, and 3, and the old drive is 4 (or remove it completely), and start the machine up. You can then add the original drive as a hot spare disk (or not). > > Matt > _______________________________________________ > CentOS mailing list > CentOS@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 hel...@deepsoft.com -- http://www.deepsoft.com/ModelRailroadSystem/ _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
