On Wed, May 7, 2014 at 1:09 PM, Richard Pieri <[email protected]> wrote: > Bill Bogstad wrote: >> And checksums can be incorrectly generated/verified by any hardware >> at any time.I claim that 100% data integrity is impossible. I don't >> think even ZFS can guarantee 100% data integrity with the right set >> of bizarre hardware failures in the CPU/RAM of the computer. > > ZFS and Btrfs can guarantee 100% data integrity when writes are atomic > (drives honor sync commands) and ECC RAM is in use and sufficient > redundant data is available for reconstruction when errors are detected. > I leave it to the reader to read the ZFS and Btrfs whitepapers that > explain precisely why they can make these guarantees.
ECC is not 100%. Nor does it protect against transient CPU/memory cache errors during checksum computation. If you are saying that ZFS can then I will happily read any whitepaper that you like bcause they are doing some kind of awesome. Bill Bogstad _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
