Windows Server 2008 R2 Hyper-V Licensing Overview

hyper-v

This is a little Overview how you can license Windows Server 2008 R2 in a Hyper-V Environment. One of the biggest advantages  of Hyper-V over VMware are the included Guest OS Licenses. For example if you buy a Windows Server 2008 R2 Datacenter license (of each CPU of your physical Server) you can deploy unlimited Windows Server 2008 R2 Datacenter Virtual Machines on this Host.

This Overview should help you understand how this works.

License License models Physical Virtual
Windows Server 2008 R2 Foundation Server License 1 0
Windows Server 2008 R2 Standard Server + CAL
Processor or SAL
1 1
Windows Server 2008 R2 Enterprise Server + CAL
Processor or SAL
1 4
Windows Server 2008 R2 Datacenter Processor + CAL 1 unlimited
Windows Server 2008 R2 for Itanium-Based Systems Processor + CAL 1 unlimited
Windows Web Server 2008 R2 Server License 1 0 (or 1)
Hyper-V Server 2008 R2 Free 1 0

 

If you need more infos you can find this here.