We have a 6 node Cassandra cluster in which all the nodes are in same rack in a dc. We want to take advantage of "multi rack" cluster (example: parallel upgrade on all the nodes in same rack without downtime). I would like to know what is the recommended process to change an existing cluster with single racks configuration to multi rack configuration.
I want to introduce 3 racks with 2 nodes in each rack. Regards Manish
