ZFS and some of the other more recent additions do offer some tasty features, along with HBA’s, but there’s much wider support, deeper toolset and more documentation for the average person to get RAID 6 working than some of the new cluster stuff.
Yes, it’s cool, yes, it works and scales, etc., but for the average person on vanilla inexpensive common hardware, RAID has been stable and usable for a very long time and would basically work on any hardware with vanilla OS support, and you get pretty reasonable performance. Also, it’d be easier to get help if bad things happened. There may also be an issue with a power/data cable, but the aging firmware/hardware issue will still be an issue at some point in the future when the gear is harder to get. > Ditch RAID and just go to HBAs with a better file system like ZFS or > CEPH.
