I'm sure this has been asked before so forgive me in advance.
I'm planning a very basic Exchange migration from 2007 to 2010. 2007=One CAS/MAILBOX/HUB server/one Edge Transport serverTO 2010=One CAS/MAILBOX/HUB server (no Edge Transport). Someday in the future I may want to configure a DAG with another CAS server. My question is whether or not I should create a Client Access Array with an associated DNS record pointing to the single CAS server in my environment. Is it best to configure it now or can it wait until I'm ready to implement in the future?
