On Tue, 16 Aug 2005, Colonel Hell wrote: > I just went thru a couple of papers describing RAID6. > I dunno how relevant this discussion grp is for the qry ...but here I go :) ... > I couldnt figure out why is P+Q configuration better over P+q' where > q' == P. What I mean is instead of calculating a new checksum (thru a > lot of GF theory etc) just store the parity block (P)again. In this > case as well we have the same amount of fault tolerance or not > :-s ... this is no better than raid5 at surviving a two disk failure. i.e. consider the case of two data blocks missing -- you can't reconstruct if all you have is parity. -dean - 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
