Capacity management may not be dead yet, but with the adoption of virtualization and cloud computing models it’s barely recognizable. IT organizations are radically changing how they plan and manage infrastructure to cope with the complexity of these large-scale shared environments and prevent the over-provisioning that results from old school planning approaches. The focus has shifted from leveraging simple tools and basic trending toward approaches that model demand “pipelines” and forecast based on capacity bookings, which more resembles a hotel reservation system than traditional capacity management. This is creating a whole new operational model that looks at the flow of workloads in and out of an environment (on-boarding and de-commissioning), as well as organic growth, all while optimizing workload placements and resource allocations to ensure optimal use of available capacity.