Vmware's virtualization capabilities have been deployed in an array of organizations around the world, and for good reason: they have helped many organizations significantly optimize the performance of their infrastructure. Yet for all the benefits virtualization delivers, it also presents a range of challenges - most critically when it comes to doing effective capacity management. This white paper offers a detailed look at the challenges of capacity management in virtualized infrastructures, and it offers a wealth of practical insights into addressing these challenges and setting the stage for successful Vmware deployments.