The IT Operations group needs to put tools in place that can measure the performance of the virtual environment and provide verifiable service-level data to the owners of these key applications. With the right tools collecting the right metrics, application owners can then in turn offer assurances to end-users. The management tools selected to support virtualization is essential to the ability of IT to grow the virtual environment without proportionately increasing the staff required to manage all of the new physical host servers and their guest VMs.