I have a cluster with 4 nodes that I want to enable rack awareness on. Currently they are all on the same rack so as part of the process I need to replace 2 of the nodes with nodes on a different rack. I also need to change the config and restart each node as per http://www.aerospike.com/docs/operations/configure/network/rack-aware/ . What is the recommended sequence to do all that? I remember seeing a weird situation on my test cluster where it was complaining that the cluster is was not balanced when I enabled rack aware there so I want to make sure I don’t get into a similar situation. I also want to minimize the number of migrations as each one can take a while.