Exchange 2010 has been in the market for well over two years now and lots of blogs have been written for both design and deployment but still when I visit many customers, they ask me guidance on how to upgrade to Exchange 2010 from an older version of Exchange. I thought to share a sort of high level deployment/upgrade steps that you need to take to upgrade from Exchange 2007 to Exchange 2010. We are assuming here that customer has only one Internet facing site, later I will add additional steps when you have multiple Internet and non-Internet facing sites.
Read my favorites blogs:
Designing a backup less Exchange 2010 Architecture
Step by step guide for upgrading Active Directory from Microsoft Windows 2003 to Microsoft Windows Server 2008
Microsoft Exchange 2010 CAS Array – Steps and Recommendations
Appear Offline in Microsoft Office Communicator Server 2007
Microsoft Exchange 2010 Test cases
Microsoft Exchange Server 2010 Disaster Recovery