Hello everyone .
First of all , let me say I've read a lot of articles , websites and topics about Hyper-V Licensing . Unfortunately Microsoft isn't going to work on its method to describe something! Microsoft Press is an example . Anyway, I'm going to buy a Windows Server 2012 R2 Data Center License to bring all machines up using Hyper-V Rule . The clear question is " Does it need to buy separated license for each machine?" . If your answer is NO , it means there's no need to do anything after creating a virtual machine and it's going to be activated at firs startup.
What about Standard edition ? We're going to create 12 VMs . How many License we need ?