This sounds impossible but when I read Gabe’s article correctly he brings back Microsoft OS licensing costs of about $800.000 (for 200 physical hosts) back to just $40.000 (for 200 virtual hosts). Of course this presents an ideal situation.
The situation Gabe describes:
- 200 physical hosts -> 200 virtual guests on 7 physical hosts
- virtualization solution can be any: MS, Citrix, VMware or other
- physical hosts contain 2 physical Quad Core CPU’s (8 cores total)
- consolidation ratio of 4 vm’s per core = 32 vm’s per physical host
- Windows Server 2008 Datacenter licensing with a price of $2.999 per CPU so $5.998 per physical host
- no physical extra capacity for redundancy
- storage solution that can handle this kind of traffic
- no CALs included (because of Datacenter edition)
Besides OS licensing Gabe also shows an example (same environment as above) of SCOM licensing costs that can be reduced with about 90% by choosing for the Microsoft Server Management Suite Enterprise (SMSE) instead of single SCOM licenses per Guest/Host.
Again, these are extreme situations but they do show that you can seriously cut back costs if you take a serious look at your MS licensing costs and options, so check it out!
Check out the full article of Gabrie van Zanten here : http://searchvmware.techtarget.com/tip/0,289483,sid179_gci1357346_mem1,00.html
Check out the FAQ’s concerning W2K8 licensing here : http://www.microsoft.com/windowsserver2008/en/us/licensing-faq.aspx