Not the person you replied to, but I want to make a case for ZFS on a generic small motherboard. You wind up with Linux or FreeBSD so it's a general-purpose server, unless you want to use something like FreeNAS. And with ZFS, you get snapshotting, RAIDz, checksumming, etc, as opposed to "oh it has RAID 5 woohoo".

RAID (including the software RAID in Linux) doesn't actually do checksumming for file verification. AFAIK, ZFS is the only open system to do so.