As a follow-up on this... Many years ago I set up a system with hardware
RAID on the motherboard. A later OS upgrade left the hardware RAID
controller unsupported. So... I haven't used RAID since.

I currently just use a single 1TB drive that's about half full. I keep a
backup server ready to go online at any time. A monthly g4l image is done
of the online server drive to an external USB drive (a SATA drive in a USB
dock). A daily rsync of content is also done to an external USB drive so
updated content can be copied over to the backup server if needed.

While RAID deals with hard drive failures, I've always thought there are
lots of other things that can go wrong, so I like to just have a backup
server. Another concept I find interesting is the "redundant array of
inexpensive servers." This allows a system to continue running on the
failure of a server, no matter what the cause was. Another method of
handling large arrays of drives that I've always found interesting, but
never used, is ATAoE. I've seen a lot of ads for Coraid and always found
the idea interesting.

Harold



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