Here's a cool new feature for Windows Server 2008 R2 Service Pack 1 just in from TechEd - Hyper-V Dynamic Memory. Very nice!!! I have a setup at home with all of my SQL Server on Windows Server 2008 R2, and this should work great for me! Check it out!
Lee
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It's only funny until someone gets hurt
http://blogs.technet.com/b/tonyso/archive/2010/06/07/hyper-v-dynamic-memory-and-remote-fx-demo-teched-2010.aspx