[ceph-users] Same data for two buildings

⁣I have a ceph cluster with 5 nodes. 3 in one building, and 2 in the other one. I put this information in the CRUSH. So that ceph were able to put one copy of objects in the nodes of one building and the other copy to the nodes of the other building. I mean, I setup replicas=2 in order to put the same information in both locations. But I know ceph cluster needs half +1 up nodes to keep one part of cluster working. I need at least a manual procedure to recover one of the two buildings if the other get down, or even if the link between them get down. I do not need 100% up, just something to block and unblock some nodes, and starts the two nodes if the building down were the one with 3 nodes.