On Wed, Apr 12, 2023 at 5:45 AM Phil Turmel <philip@xxxxxxxxxx> wrote: > > What is nonsense? A two-disk raid5 does have exactly the same content > on both disks, just like a mirror. The parity for any given single byte > is that same byte. Only if it's using even parity. If it's using odd parity, the second disk is the inverse of the first. (I think Linux RAID uses even parity, but if it's documented anywhere, I haven't found it.) -- Mark
