On Wed, 30 Sep 2015, Wouter De Borger wrote: > Hi all, > In the original paper (RADOS: a scalable, reliable storage service for > petabyte-scale storage clusters), three replication schemes were described > (primary copy, chain and splay). > > Now the documentation only discusses primary copy. Does the chain scheme > still exist? > It would be much more bandwidth efficient for me. Nope--it wsa removed years ago due to the complexity of maintaining all three, and because the asymmetric data path caused a lot of other problems. s
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