The concept of a storage hypervisor is not just semantics. It is not just another way to market something that already exists or to ride the wave of a currently trendy IT term. A storage hypervisor has substantial, actual operational and business value. While some storage virtualization capabilities are available currently, they typically have limitations. Organizations have now experienced a good taste of the benefits of server virtualization with its hypervisor-based architecture and, in many cases, the results have been truly impressive: dramatic savings in both CAPEX and OPEX, vastly improved flexibility and mobility, faster provisioning of resources and ultimately of services delivered to the business, and advances in data protection. The storage hypervisor is a natural next step and it can provide a similar leap forward.