Windows Server 2008 R2 SP1 Beta now available

Windows Server 2008 R2 SP1 Beta now available

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Starting today you can download the Windows Server 2008 R2 SP1 beta release.  For Hyper-V this specifically means that you can start evaluating the following new Hyper-V features:

  • Dynamic Memory – the new feature that allows Hyper-V to dynamically change the amount of memory assigned to a virtual machine at run time, to get higher consolidation ratios.  I spoke about this at TechEd US 2010 – and you can watch the movie here.
  • RemoteFX – provides support for rich graphics (Silverlight, 3D, etc…) when using Hyper-V to host desktop virtual machines.

You can register to download the beta here:

Note that while registration is required, there is no approval process and you will get immediate access to the bits.


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  • Great news... had access to the bits for a while.  Dynamic memory works well, and great to see from the Implementing and Configuring Dynamic Memory whitepaper that Standard editions of Windows Server will be supported at a later time, but not in Beta.  I hit this particular issue, and was quite worried this might be a blocker, but good to see you have it in hand :o) (In place upgrade of Windows Server 2003 Standard to Enterprise is not that nice ;o) ) Matt McSpirit has a good blog linking to various bits here, including the aforementioned whitepaper:  

    Great work on Dynamic memory, looks like being a really useful feature.

    Would like to test RemoteFX but pretty high requirements for that at the mo.  I hope that supported add-on Grahpics Cards, suitable for Servers is something that is in the pipe line for this feature.



  • Also availabe today are instructions for enabling & trying out Dynamic Memory, in the Hyper-V Dynamic Memory Evaluation Guide --


    Links to that guide and other technical docs at the Windows Server 2008 R2 SP1 tech library page:

  • Can we also try this beta release on Hyper-V R2 server? I understand that Hyper-V R2 server is basicly a core Windows 2008 R2 server that only runs the Hyper-V role, but I'd rather be sure before I try this out on my Hyper-V R2 server at home and break something. I'm very interested in trying out the Dynamic Memory feature!



  • Windows Server 2008 R2 SP1: How many CPUs/cores can by attached into the 1 Virtual Server (my hardware is 2x quad xeon)


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