Microsoft details Windows licensing for 3rd party virtualization platforms

Posted by virtualization.info Staff   |   Monday, June 11th, 2007   |  

Finally Microsoft takes a clear and official position about application of Windows licensing on virtual machines hosted on 3rd party virtualization platforms (including hardware virtualization solutions like VMware ESX Server or VMware Server and OS virtualization solutions like SWsoft Virtuozzo).

In a brand new whitepaper Microsoft covers all these scenarios, including special features like VMware VMotion and client-side licensing terms, detailing:

If you have assigned a single license of Windows Server Standard Edition to the server running ESX, then you may run one instance at a time of Windows Server Standard Edition. If you have assigned a single license of Windows Server Enterprise Edition to the server running ESX, then you may run up to four instances at a time of Windows Server. You may not run a fifth instance under the same Enterprise Edition license because that right requires that the fifth instance be running hardware virtualization software and software managing and servicing the OSEs on the server. However, Datacenter Edition permits unlimited running of instances in virtual OSEs.

VMotion, System Center Virtual Machine Manager, and Windows Server Clustering all move instances of virtual OSEs between physical servers. However, the licenses remain with the physical server to which they are assigned. When an instance is moved to a new physical server, the new server must have the appropriate licenses.

With a few exceptions, described in the box to the side regarding PUR, software licenses may only be reassigned to new hardware after 90 days. However, the dynamic movement of virtual OSEs between licensed servers is not restricted in any way. As long as the servers are licensed-and are not running more instances simultaneously-you are free to use VMotion and System Center Virtual Machine Manager to move virtualized instances between licensed servers at will…

The most interesting part anyway is a final comparison chart between VMware ESX Server, SWsoft Virtuozzo and Microsoft Virtual Server, where appears VMware ESX Server is less expensive than competitors when using Windows Server 2003 Standard Edition, and has equal costs when you adopt Enterprise or Datacenter editions (which are preferred choice for virtualization deployments):

Microsoft already exposed its licensing strategy more clearly with launch of Virtualization Calculator 2.0, few weeks ago, but customers were still missing an official document to refer to.

Highly recommended reading before starting any virtualization project. Read it at source.



blog comments powered by Disqus


virtualization.info Newest articles
Convirture opens a UK based office to explore EMEA market

September 15th, 2014

Convirture the company, founded in 2006 that provides an open source management console to manage virtualization platforms,  announced to have opened a UK- based office which will help the company…

Release: VMware ThinApp 5.1

September 12th, 2014

VMware has released version 5.1 of its application virtualization product ThinApp. Version 5.1 is the follow up of version 5.0 which was released in November last year. The update provides…

Brian Stevens former Red Hat CTO joins Google as VP of Cloud Platforms

September 12th, 2014

Two weeks ago we were wondering about Brian Stevens, who resigned as Red Hat’s CTO, asking ourselves if this could be seen as a “tremendous opportunity” for both.
Red Hat…

HP Acquires Eucalyptus

September 12th, 2014

Yesterday HP announced to have reached a definitive agreement to acquire Eucalyptus, provider of an open source Cloud Solution competing with OpenStack, CloudStack and OpenNebula.
This acquisition will put…

Release: VMware ESXi and vCenter Server 5.5 Update 2

September 12th, 2014

This week VMware released version 5.5 Update 2 of two of its flagship products, ESXi and vCenter Server, updates that were announced at VMworld 2014 in San Francisco.
Among the…

Release: Red Hat Satellite 6

September 11th, 2014

Satellite is Red Hat’s server life-cycle management based on the community project Spacewalk, it basically provides provision, patch, configuration and subscription management across Red Hat’s ecosystem.
Yesterday the Raleigh company…

Release: Oracle VM VirtualBox 4.3.16

September 11th, 2014

Oracle has released a new version of its virtualization platform VM Virtualbox. Version 4.3.16 is considered a maintenance release which can be installed on top of version 4.3. The update…

Microsoft releases limited preview of Migration Accelerator for Azure

September 8th, 2014

Microsoft last week announced a limited preview of Migration Accelerator (MA) for Azure. MA can seamlessly migrate physical, VMware, Amazon Web Services (AWS) and Hyper-V workloads into Azure, automating discovery…

Amazon CFO will retire in summer 2015

September 5th, 2014

On September 3, Amazon announced that Chief Financial Officer Thomas Szkutak plans to retire in June 2015 after about 13 years in the business, beginning in October 2002, where he…

Release: VMware Fusion 7

September 3rd, 2014

Following the technology preview announced in May VMware has released version 7 of its desktop virtualization platform for OS X: Fusion.
This new release, that comes in the normal and…

VMworld 2014 Wrap-Up: The open source side

September 2nd, 2014

As we mentioned last week, VMware used the stage of VMworld 2014 to “remind” its audience how deeply the company is involved in the open source community.
The company took…

Nutanix raises $140 million in Series E funding

September 1st, 2014

Nutanix, provider of web-scale IT infrastructure to medium and large enterprises with its software-driven Virtual Computing Platform, announced to have raised $140 million in a Series E funding over…

VMworld 2014 Wrap-Up: End User Computing Announcements

September 1st, 2014

The first day at VMworld 2014 was all about the new vCloud Air catalog and VMware’s “we are all open source folks” strategy but progressing in the event has also…

VMworld 2014 Wrap-Up: VMware vCloud Air Announcements

September 1st, 2014

Just before the beginning of VMworld 2014 VMware announced the rebranding of its owned and operated public Infrastructure as a Service (IaaS) service vCloud Hybrid Service (vCHS) into the more…

 
Monthly Archive