Well, I agree that Raid 5 is slower than raid 0 because if the extra “on-the-fly” parity that must be calculated and written, but there is no way that I should be getting 6MB a second read and write speed… it should at least be as fast as a single drive, which should be at least 20MB a second… and gigabit ethernet is way faster than a single hard drive (assuming everything is working properly).
I’ve tested copying from other computers, and am still only able to top out at 13MB a second… WAY slower than gigabit should be delivering.
This RAID 5 array is a NAS appliance I’m testing, so if it truly tops out at 6MB a second write speed then it’s gonna get a horrible score… because of the way this thing works, it’s not worth using it as JBOD, single drive, or even RAID 0… either RAID 5 or don’t bother.
