Eventhough we purchased the vSphere Essentials, but we only have 1 physical server that running 3 vm on it. So in this case, is the vCenter Server still helpful? or I can just use the VMware vSphere Client?
And if I need to install vCenter Server, do I have to install on the vm or I can install on any one of the physical machine? and does the machine has to be joined to the domain?