Turning a Non-RAID System to a RAID can it be done?

kitek · 03-24-2011, 08:03 AM

I have a box that doesn't have a Raid controller or a software raid running currently. I would like to make it a RAID 1. Since it seems there isn't any IDE RAID controllers hardly around, I have another HD that is the exact model as the drive currently in the box running CentOS. Can I some how add the second drive and get the box to mirror from here own out? The box gets really hot and I want to be ready for a HD failure.

AlucardZero · 03-24-2011, 10:06 AM

If you are using logical voluming, yes, you can add a mirror using "lvconvert".

http://www.centos.org/docs/5/html/Cl...LV_create.html

If you aren't using LVM, no, you have to reinstall to use RAID.

ordinary · 03-24-2011, 11:24 AM

If the box is running hot, I'm not sure I would add another heat source to the thing... it'll just run hotter. Also, you'll be cooking two drives rather than one. A better solution may be good backups to an external medium.

kitek · 03-24-2011, 11:39 AM

Quote:

Originally Posted by ordinary

If the box is running hot, I'm not sure I would add another heat source to the thing... it'll just run hotter. Also, you'll be cooking two drives rather than one. A better solution may be good backups to an external medium.

Well when I say hot I really just meant all computers get really warm and I just don't wont to loose that drive. I guess I need a good solution to image that drive to the other. That way if it fails I can figure out how to get the data back in there on another working drive.