posted by Thom Holwerda on Thu 5th Oct 2006 22:02 UTC
Microsoft, of all companies, continues to lead the way with free and loose licensing terms around server virtualization software and multi-core processors. As of Oct 1, Windows Server Datacenter Edition operating system customers will have the right to run "an unlimted number of virtualized Windows Server instances". This policy applies to licenses covering new servers and previous licenses upgraded with new version rights. All told, it means that you pay to run Windows Server Datacenter Edition on a server with a set number of processors and can then divvy that box up with any combination of Windows Server Standard Edition, Enterprise Edition and/or Datacenter Edition without needing to count the number of virtual machines being created or pay for extra Windows Server licenses.