On Wed, May 30, 2012 at 4:47 AM, Jerker Nyberg <jerker@xxxxxxxxxxxx> wrote: > I am waiting as fast as I can for it to be production ready. :-) I feel like starting a quote of the week collection ;) One more thing I remember is worth mentioning: Ceph doesn't place objects "near you", CRUSH is completely deterministic based on the object name. Hence, your worst case may actually look like this: sites: west, east servers: a,b in west; c,d in east client: x in west Write from client, with bad luck, will go x->d, replication: d->a, d->b Now you've used 3x bandwidth on the WAN. Currently, the only way to work around this is with pools, and there's nothing automatic about that. -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html