Tuesday, July 31, 2007


Webcast: Microsoft Server Virtualization Licensing

Source - Virtualization.info http://www.virtualization.info/2007/07/webcast-microsoft-server-virtualization.html

Webcast: Microsoft Server Virtualization Licensing
Thursday, July 26, 2007
Microsoft published a 26-minutes on demand webcast about its licensing model applied to virtualization scenarios.

This is a must see video for anyone using Microsoft technology on Windows. The key point to take from this for me (Jeremiah Coook) is that if you plan on using Vmotion or DRS and you ever plan on having more than 9 windows virtual machines on a single host (even in the case of a disaster), you should buy datacenter licenses for each of your esx hosts. Watch the video and learn for yourself. - Also, I have a slight beef with what they say about SQL and Exchange licenses being assigned to the host vs the virtual machine. That is absolutely over the top in my opinion. So if you had an ESX farm with 4 hosts and just one exchange server, if that exchange server moved among ESX hosts based on a DRS policy, you would need 4 copies of Exchange Server. I am not digging that. I bet once Microsoft releases their VMM with vMotion like capabilities, that little rule will change. Anyway, I hope it will. Don't get me wrong, I'm a MS Gold Partner and love almost all things Microsoft but come on, this is pushing it.

In it Eric Jewett, Lead Product Manager for Windows Server Marketing, covers following topics:
Licensing capabilities in different Windows editions
Differences between running and stored virtual machines
Differences between Server+CAL and Per-Processor licensing models
Application of Microsoft licensing to moving virtual machines (for example using VMware VMotion capabilities)

Video is here: http://www.virtualization.info/2007/07/webcast-microsoft-server-virtualization.html

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