"David Mathog" <mat...@caltech.edu> writes: > With "modern" hardware are there currently any notable instances where a > failed read of a hardware storage area block results in that missing > data being filled in with something other than null bytes? For > instance, if a disk swapped a bad block out of the inside of a file, or > a region of a DVD goes bad. (Assuming that the software reading it can > even go on beyond the failure, which is often not possible, for instance > on many tapes.)
I seem to remember people looking at the expected failure rates were saying that were are getting close to the point where a single pass through the disk will have a single undetected bit flip. Which is one of the reasons disk manufacturers have wanted to go to 4K blocks recently so the can get more error checking/correcting per bit. Eric _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
