- a "new" one, with two masters in mirror mode (only one get the writes at anytime thanks to the loadbalancer), and two replicas (only data) which get all the reads. I feel like configuring chaining to be able to write from the replicas, but I have no experience of the benefits of this configuration...
Why not just make them all providers? You can pretend the two that aren't behind the master URL are replicas and direct read traffic to them, and if they do happen to get a write, the correct steps will occur, with no need to set up chainging at all.
--Quanah -- Quanah Gibson-Mount Platform Architect Zimbra, Inc. -------------------- Zimbra :: the leader in open source messaging and collaboration