Microsoft Hyper-V Server 2008 R2 RTM available for download

You can grab it from here:

To recap, the new features of this release are:

  • Support for physical computers with up to 8 physical processors
  • Support for using up to 1TB of physical memory (virtual machines can use up to 64GB each)
  • Support for clustering
  • Support for live migration
  • Support for CPU Core Parking
    • Core Parking 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, Jumbo Frames and other optimizations on networking
  • The ability to hot add / remove SCSI virtual hard disks