I have a current 0.6.x cluster in a single datacenter with RackUnaware and am looking to expand into a second data center. I know I need to change to RackAwareStrategy however, I'm not sure what will happen to my data when I restart the nodes in the current cluster before I even add the new DC. Will the data need to move based on the rack each node is in or will it stay on the node it is currently on? Also, when I start adding nodes in the new DC to the cluster should they come in one at a time, like bootstrap, or should I light up several at the same time to distribute the data?
For reference I have 19 nodes in my cluster. Thanks.
