On Fri, 2 Oct 2009, Ray Clark wrote:

With the current fletcher2 we have only a 50-50 chance of catching these multi-bit errors. Probability of multiple bits being changed is not

What is the current fletcher2? A while back I seem to recall reading a discussion in the zfs-code forum about how the original zfs fletcher2 was found to be unexpectedly weak and broken so they updated the "fletcher2" algorithm and assigned it a new enumeration so that fresh blocks use the corrected algorithm. I could be just imagining all of this but that is what I remember today.

Since you are using Solaris 10 U4 maybe you are using the dinosaur version of fletcher2?

Bob
--
Bob Friesenhahn
bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
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