I have 5 node cluster running cockroachdb 2.0.6. My replication factor is 3. I am playing about with getting nodes down and I am a bit confused regarding how many nodes I can have up for quorum. The docs say I can lose (replication factor - 1 )/ 2 that is 1 in my cluster but I got down 3 nodes before I saw replicas being under replicated. And my cluster is still up and running. If I get down one more then the cluster will be unavailable. So is the (replication factor - 1 )/ 2 for clusters where the total number of nodes = replication factor ? Or I am missing out something here.