I am having an issue.. I think I am reading too much...
We have a single AD site. We have a production environment and a DR environment(currently no exch server) during our upgrade from 2003-2010 I am thinking of this
2 exch servers 1 & 2(each with all roles on them)
Exch Server 3 (all roles)
For site resilency and HA
Have HLB- CAS array pointing to all 3 servers-
SAN cert. HLB .. external DNS namespace and internal DNS names space. ( in the event of a HLB failure I would have to create DNS record pointing directly to CAS server that is online)
DAG on each Exch server Exch 1 active Exch 2 and 3 Passive copies
Enable DAC so that if the link between our location goes down we could make sure split brain type thing doesn't occur (not sure if I need to do this or not)
1. Is this going to be a pain to maintain and in the event of a failure recover? I believe I would have to do *over.
2. How would I provide site resilency for my OWA, Mobile Clients and Outlook Anywhere clients?
3. Am I missing anything?