With the release of VMware vCenter CapacityIQ, VMware has provided the functionality to vCenter to proactively monitor the capacity of your VMware Infrastructure. It’s great that VMware recognizes the market need for capacity planning, management, and optimization of VMware infrastructures. However the VMware vCenter CapacityIQ is quite expensive and a first release for VMware.
vKernel has a similar product for quite some time with lots of features under the name of vKernel Capacity Analyzer.
vKernel Corporation is making perpetual licenses of its Capacity Modeler software for VMware completely free until December 31, 2009. Your free license for vKernel Capacity Modeler can be downloaded here: