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Free Hyper-V Server 2008 R2 Supports Live Migration

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Microsoft Hyper-V Server 2008 R2 that includes live migration is now available from Microsoft Download Microsoft Hyper-V Server 2008 R2.

Hyper-V Server 2008 R2 a stand-alone hyper-visor that includes live migration and expanded processor and memory support for host systems. You can consolidate workloads onto a single physical server and is ideal for development and test environments.

The R2 version also includes:

  • Support for physical computers with up to 8 physical processors
  • Support for 64 logical processors and for running up to 384 virtual machines with up to 512 virtual processors
  • Support for using up to 1TB of physical memory (virtual machines can use up to 64GB each)
  • Support for clustering
  • Support for CPU Core Parking, which allows Windows and Hyper-V to consolidate processing onto the fewest number of possible processor cores, and suspends inactive processor cores.
  • Support for Second Level Address Translation (SLAT) in CPUs. On Intel processors this is called "EPT" while AMD calls it "NPT." SLAT adds a second level of paging below the architectural x86/x64 paging tables in x86/x64 processors, providing an indirection layer from virtual machine memory access to the physical memory access. In many virtualization scenarios, hardware based SLAT support can offer performance improvements.
  • Support for VMQ, Chimney, Jumbo Frames and other networking enhancements
  • The ability to hot add / remove SCSI virtual hard disks

ISVs combine Hyper-V Server with Windows Server 2008 R2 servers to build and test applications. Client application environments can be tested and cloned while being managed with System Center Virtual Machine Manager (VMM). Virtual Machine Manager 2008 R2 has been recently released.

If you who require richer and more robust virtualization features, such as Quick Migration, multi-site clustering, large memory support (greater than 32 GB of RAM), and more than four processors on the host server, should use Windows Server 2008. To compare features, see When to Use Hyper-V Server 2008.

For more information, see Hyper-V Server home page. For more information on managing your virtual machines, see System Center Virtual Machine Manager home page.

Bruce D. KyleISV Architect Evangelist | Microsoft Corporation

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