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A while back I got a question from a reader concerning ColdFusion licensing. As I know next to nothing about this I went right to Josh Adams, Adobe's newest ColdFusion specialist. He graciously helped me out and his reply is below. First, the question, from Andy:
Here at the County we are heading into a virtualized blade sever environment (using VMware). I can't find conclusive, non-conflicting information on Adobe's site that states what version of CF is compatible with a virtual environment. I found a PDF that says CF8 Enterprise is compatible and CF8 Standard is not, and I even found another page that says MX is compatible with virtualization. Can you direct me to the correct answer?
First let's start with the licensing generally; from the Adobe ColdFusion 8 FAQ we have this:
ColdFusion 8 is licensed based on the number of physical processors (CPUs) on the server on which it is running. ColdFusion is licensed in two-CPU increments. Each license of ColdFusion, whether Standard or Enterprise Edition, allows the software to be installed on a server with one or two CPUs. Additional CPUs on the server require additional licenses. Note that the total number of computers on which ColdFusion 8 is installed and used may not exceed the total number of licenses purchased. That means you cannot purchase one two-CPU license and use it on two separate single-CPU servers. Each server, in that case, needs its own license. View information regarding the licensing of ColdFusion 8.
Next let's move to additional licensing considerations related to VMs: there are no restrictions on the number of VMs onto which ColdFusion 8 Enterprise may be installed. However, ColdFusion 8 Standard can be used on no more than one VM per license. Note that this is consistent with ColdFusion 8 Enterprise's allowance of unlimited instances per license and ColdFusion 8 Standard's restriction to a single instance per license.
Finally, let's take a look at platform support considerations: the VMWare and Microsoft Virtual Server platforms are officially supported for ColdFusion 8 Enterprise but not for ColdFusion 8 Standard. That means that Adobe Support will investigate issues encountered on ColdFusion 8 Enterprise running in a VM, but they may not investigate issues encountered on ColdFusion 8 Standard running in a VM but instead they may require that those issues be reproduced on a supported platform.
Thank you Josh!