> Also, in ZFS today block checksums are used for integrity protection, > not for block equality comparisons. The fact that here blocks would not > be compared for actual equality does worry me somewhat. > >
I presented the question :"Are SHA256 questions good enough to establish block equality?" to Jeff Bonwick. His answer: > Yes. Collision probability is 10-77, i.e. 77 nines. Nothing else > in a computer is even close to that reliable. lori
