My understanding is that RAID 5 -always- stripes parity. If it didn't, I believe it would be RAID 4. You may find http://linux.cudeso.be/raid.php of interest. I don't think RAID level 6 was in the original RAID paper, so vendors may have decided on their own that it should mean what they're selling. :) On Wed, 2005-11-16 at 12:54 -0500, Bill Davidsen wrote: > Based on some google searching on RAID-6, I find that it seems to be > used to describe two different things. One is very similar to RAID-5, > but with two redundancy blocks per stripe, one XOR and one CRC (or at > any rate two methods are employed). The other sources define RAID-6 as > RAID-5 with a distributed hot spare, AKA RAID-5E, which spreads head > motion to all drives for performance. > > Any clarification on this? > - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
