I need some recommendations. We have a cluster Prod environment with two servers (diagram attached). I need to add 2 additional servers (cluster - 2 * BOBJ server/ 2* Web servers) and after successful installation retire the old clusters. I need to also rename the new cluster environment (server name ) to old server this way users do not have to clear their cache. We currently have 3000 users, and 30+ concurrent users therefore trying to be careful.
In case you are wondering why we are doing this, its because we are moving to new cloud server boxes (Rackspace cloud upgrade) which is apparently cheaper and has better performance. Unfortunately, Rackspace can not migrate the content (DB's) from existing box to new one's.
I need some recommendations, and advice's if its is possible to keep same server names after retiring the old one's. Also when I need to create a cluster environments I will do a fresh installation of BOBJ server on both Boxes and then how should I move the content?
Also need to backup CMS/ FRS DB's prior to this activity any advice's will be helpful.