Hi, Let's imagine a cluster of 6 nodes, 5 on rack1 and 1 on rack2.
With RF=3 and NetworkTopologyStrategy, "The first replica per data center is placed according to the partitioner (same as with SimpleStrategy). Additional replicas in the same data center are then determined by walking the ring clockwise until a node in a different rack from the previous replica is found." So, if I understand correctly the data of rack1's 5 nodes will be replicated on the single node of rack2. And then, the node of rack1 will host all the data of the cluster. Is it correct? Thanks. Best regards, Dominique