Server 2012 adding more Server 2012 VMs

The MS Server 2012 standard comes with 2 free VSOEs (Virtualization Operating System Environments), which we use to add 2 more Server 2012 virtual instances.

But now we need more virtual Server 2012 instances (in addition to the 2 free ones). We thought of buying an extra license of the Server 2012.

Question is, buying an extra license, would this give us 3 more VSOEs (host plus 2 VMs)? How do we activate the additional 3 VMs? Just enter the new product key for each? The same product key, would it work 3 times on new VMs?
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yo_beeDirector of Information TechnologyCommented:
Here is a good explanation

From what I can understand from the read in the link is your copy of of standard 2012 gives you 1 physical or 2 vm's per license. If you are running Hyper-V  you will need 3 licenses to run more than 2 VM's.

1 for 1 physical
2 for 4 vm's
David Johnson, CD, MVPOwnerCommented:
remember that the physical can only be a management for hyper-v server this evens the field between other hyper-visors.  They ALL have 2 virtual plus their management server you cannot add more roles to the physical server or you use up one of your virtual licenses
campinamAuthor Commented:
I'm confused...
yo_bee link suggests a second license adds 2 VMs. Two, not three as I guessed in my question. Please correct if I am wrong. There will be a total of 4 VMs.

Still a question, how do I activate these additional 2 VSOEs, just enter the same product key twice? meaning, the second license product key.
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David Johnson, CD, MVPOwnerCommented:
yes you use your product per normal

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Mark DamenERP System ManagerCommented:
It's already been said, but to clarify:

Server 2012 standard allows for physical install of Hyper-V, and 2 VMs

If you use another hyper visor, then only 2 VMs are allowed with the 1 standard license.  

To run 5 VMs, you will need 3 copies of server 2012 standard.  You would use the original license key for first 2 VMs, next license key for next 2 VMs, and final key for remaining VM.  You would have one spare VM license at the end of it.

Server 2012 datacenter has unlimited VMs - consider the cost of standard vs datacenter and if you plan to add more than 5 VMs, datacenter may be more cost effective.
David Johnson, CD, MVPOwnerCommented:
Again jut to clarify unlimited VM's are per computer.. 2 Servers require 2 licenses and each can have unlimited VMs on that machine..  The break even point per machine is 6 VM's, 7 or more makes Datacenter  cheaper than standard
Cliff GaliherCommented:
Processor limits can change that. A four processor server would require two datacenter licenses so even with 10 VMs, standard would be cheaper. At that scale, clustering and mobility between nodes often makes datacenter more practical however, so it isn't just a raw initial investment cost at that point.
Lee W, MVPTechnology and Business Process AdvisorCommented:
Just to clarify - you are not licensing the number of VMs Hyper-V can run.  You ARE obtaining licenses for VMs running Windows Server.
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Windows Server 2012

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