|Chris Heerschap on 5 Mar 2013 06:49:20 -0800|
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|Re: [PLUG] Converting from single-disk to mirrored|
On 3/4/13 8:17 PM, Casey Bralla wrote:
Related question: Can you simply add a second drive to a system to create a RAID mirror system? I've got a server that crashed last year and then I f'ed up the restore. I'd like to add a RAID mirror, but thought I had to start off that way from a clean install. is there an easy way to setup RAID on a running system?
Quite some time back I was curious if this was possible, and had a RHEL system at my disposal to test with, and actually succeeded in going from a one disk system to a mirrored setup. I documented it at the time:
http://db94.net:8080/wtf/pmwiki.php?n=Main.ConvertingInstallationToMirroredWhole buncha caveats apply, and I only did it because I didn't care about the data on the system. Since then, I've actually come to the conclusion that having good OS backups and a quick way to restore the OS is far more effective than having a software mirrored OS. I've found that using "dump" is a really good way to back up the OS and have used it for recovery, DR tests, as well as system cloning.
cmh ___________________________________________________________________________ Philadelphia Linux Users Group -- http://www.phillylinux.org Announcements - http://lists.phillylinux.org/mailman/listinfo/plug-announce General Discussion -- http://lists.phillylinux.org/mailman/listinfo/plug