I just received my eopen volume license keys... and links to download the associated software. I have brand new servers. I want to install 2008 Enterprise on 2 physical servers and use hyper-v to host three virtual machinse each File Server, Exchange 2010, BES, etc). These servers will be clustered and all VMs will sit on one machine, if needed, in an emergency.
Which software should I download
1- Windows Server 2008 R2 Enterprise with SP1
2- Windows Server® 2008 Enterprise with Service Pack 2
A- Windows Server 2008 R2 Standard with SP1
B- Windows Server® 2008 Standard with Service Pack 2
When do use R2?