I've currently got a pair of vSphere5 standard servers (physical, not VAs) managing about a hundred ESX 4.1 and 5 hosts in two different physical and logical datacenters. With our last purchase, we bought another vSphere license for the new vS server. I unmanaged all the ESX servers in one datacenter and added them to new vSphere server.
Our previous single-vS-server layout used to be:
-vSphere1 --Datacenter1 (where the physical ESX host was located) ---Folder ----ESX server1 --Datacenter2 ---Folder ----ESX server2
Now it looks like
-vSphere1 --Datacenter1 ---Folder ----ESX server1 -vSphere2 (new vSphere server) --Datacenter2 ---Folder ----ESX server2
ESX server2 was removed from vSphere1's inventory and added to vSphere2's, so it is now managed by vSphere2.
This is nice and all, as no vSphere <--> ESX management traffic leaves the physical datacenter, except for one huge oversight: when I go to clone a VM, the opposite vSphere server (and thus other datacenter) does not show up in the list on the first page of the wizard.
Is this a bug, a license limitation, or is it just simply not possible to clone a VM from an ESX box managed by one vS server to another ESX box managed by a /different/ vS server?