On Thursday June 15, xiongzige@xxxxxxxxx wrote: > I am confronted with a big problem of the raid6 algorithm, > when recently I learn the raid6 code of linux 2.6 you have contributed > . > Unfortunately I can not understand the algorithm of P +Q parity in > this program . Is this some formula for this raid6 algorithm? I realy > respect your help,could you show me some details about this algorithm? See: http://en.wikipedia.org/wiki/Redundant_array_of_independent_disks#RAID_6 and http://kernel.org/pub/linux/kernel/people/hpa/raid6.pdf NeilBrown - 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