SATA PT2

[Luke -Jr]

On Wednesday 06 June 2007 09:47, Phil Thayer wrote:
> As for figuring out the second parity calculation on RAID 6, what the
> manufacturers are realizing is that they don't necessarily have to have
> a different parity algorithm to calculate the second parity.  Simply
> putting the same XOR parity data on two separate disks will provide the
> same RAID 6 functionality as having a second parity calculation with
> lower overhead on controllers.  The old KISS methodology is coming back
> into play.  I think you will see more and more of the manufacturers
> going this route.

That only works if one of the dead disks is a parity disk...