By chance, I've been asked to do some research on a migration from Exchange 2003 to 2010. I've been working with Exchange 2007 for some years but without any formal certification or the likes.
I've been reading a lot of educational material and whitepapers to get a grasp of the migration process and new concepts in 2010. My goal is to get a solid understanding of what is going on, make overall suggestions to the topology and be able to provide competent assistance in case we'll hire an external company to take care of the migration.
I feel fairly confident about my overall understanding of the roles and principles of the high-availability setup - although I have few bonus questions I hope you can assist me with :)
- 1x EDGE server
- 2x CAS/HT servers configured with a CAS array via NLB
- 2x MB servers configured in a simple DAG.
Now, for the above setup I've been wondering about a few things:
- With 2 MB servers in a DAG, will I need a witness server in my setup?
- Regarding mailbox databases - what is your strategy for splitting up the databases? By size, volume or...?
I admit, that my knowledge about certificates are fairly basic - I'm working on that :). When ordering a SAN certificate from our provider does this certificate also have to include internal addresses or simply the external FQDNs? What I mean is, that I need to include the mail.contoso.com, autodiscover.contoso.com and legacy.contoso.com but beside that, do any internal names need to be included? And what about multiple TLD extensions - do these need to be accounted for in the SAN certificate as well?
I think the above questions are what have been puzzling me the most. I'm eager for some feedback on this little project of mine and I appreciate any good advice :)