For a test infrastructure (that will be the definitive one after some months) do you think that starting with only 2 servers and many ODSs will be ok? OpenStack swift suggest at least 3 servers (due to it's replica = 3), with ceph is possible to start with 2 and then grow up to 3, 6 and so on? Is possible to change the number of replicas in realtime ? -- 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