Exchange 2013 HA and Site resilience

Hi All,

   I plan to migrate from Exchange 2010 single server with MBX, CAS, HUB with no service pack to Exchange 2013 server, my plan is as below.

2 Exchange 2013 MBX, CAS in the primary site  ( DAG )
1 Exchange 2013 MBX, CAS in my DR Site.

Kemp load balancer.

I need to know the below.

2- my current AD is 2 windows 2008 servers and one windows 2003 ( 2003 functional level)
1- Shall I just install exchange 2010 SP3 direct?

 shall I upgrade to windows 2008 R2 or 2012?

3- Which kemp model to use to use for 1500 MBX users and Lync 2013 servers

4- how many SSL i need

Who is Participating?
Simon Butler (Sembee)Connect With a Mentor ConsultantCommented:
Go straight to Exchange 2010 SP3, and then the latest rollup.
The domain and forest need to be 2003 native, not mixed.
Up to you on the OS - Windows 2012 will be fine, and you can do DAG with standard edition. On windows 2008R2 you need Enterprise edition.

SSL certificate - one. Just get one that supports multiple names and include all of the relevant names on it.

Can't comment on the Kemp question though. 2013 has changed the rules and you don't need as much as you did with 2010.

ITMaster1979Author Commented:
Hi Simon,
Thanks for your help, shall I upgrade my AD schema first or exchange will take care of it.

Simon Butler (Sembee)ConsultantCommented:
Exchange will update the schema for itself automatically as part of the setup. You only need to do it manually if you have multiple domains.
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