Ejemplo de lo que seria un pool de vRAM y como podemos mover mv´s entre esos pools:
Este es el line up de precios para las versiones Standard, Enterprise y Plus:
Este es el esquema de upgrade desde vsphere 4.x a la 5.x:
Este es el esquema de upgrade entre versiones de vsphere 5.x:
Segun la web del fabricante bajo el lema de "Understand How vSphere and vCenter Server Are Licensed"
y cito textualmente para evitar confusiones "
"....vSphere 5 will be licensed on a per processor basis with a vRAM entitlement. Each vSphere 5 processor license will entitle the purchaser to a specific amount of vRAM, or memory configured to virtual machines. The vRAM entitlement can be pooled across a vSphere environment to enable a true cloud or utility-based IT consumption model. Just like VMware technology offers customers an evolutionary path from the traditional datacenter to a cloud infrastructure, the new vSphere 5 licensing model allows customers to evolve to a cloud-like "pay for consumption" model without disrupting established purchase, deployment, and license management practices and processes. Unlike vSphere 4.x licenses, vSphere 5 licenses do not impose any limits on the number of cores per processors and maximum size of RAM capacity per host."
Teneis el documento completo en este enlace: https://www.vmware.com/files/pdf/vsphere_pricing.pdf