I've finally figured out the exorbitant license requirements for running multiple Windows Server on a VMware cluster with Windows server mobility licensing, you basically have to license your one copy of windows server for each host in the cluster because it "might be vmotioned or HA'd there" and thus reside on another server. Its basically smarter to go with Datacenter with each host if you have a good number of windows servers virtualized. (See below article and specifically the last section on calculating the license requirements).
Just wondered if someone out there knew if this licensing requirement is also needed for a DR site with the same physical setup? We'll be replicating our Windows Servers over to the DR site, hopefully we'll never have to use it. I'm under the assumption that we need to license those hosts too just like the primary site, thus 2x the cost.
Anyone out there done due diligence research on this and know what the license requirements are?
Thanks very much.