Check out the Best Practises for Virtualising Exchange Server 2010 on Windows Server 2008 R Hyper-v : http://www.microsoft.com/downloads/en/details.aspx?FamilyID=8647c69d-6c2c-40ca-977e-18c2379b07ad One of the most common questions I get on this topic is : Are Database Availability Groups (DAG’s) supported in a virtual environment? The answer is YES but with conditions. To quote the guidance: “Exchange server virtual…