I am in the process of shopping for drives for my Linux Server (CentOS 6.3). I think I have it narrowed down to RAID 5 or RAID 10 (have to see what hard drive prices do) and using the Linux Software RAID. I like the software RAID because I can configure it to email me about drive failures, etc. I am just wondering one thing... say my system gets corrupted, what are the steps necessary to mount that RAID volume on a different Linux installation? If this happened I would be willing to install a new system that is compatible, it doesn't have to be "universally compatible" with other distros or anything... Is there a configuration file I can save and then rebuild the array from that? Or does it happen automatically?
I will be using the RAID as a backup system, so redundancy is important, but it isn't the only place the data will be stored, I will probably also buy one other drive that will hold the entire size of the array (for instance if I get 3x 1TB drives for a raid 5, my other drive will be a 2TB) to use for off-site or at least offline backup. I'm a little paranoid about data now since I lost many pictures a few years ago.