Cloud compute infrastructure as a service (IaaS) — on-demand compute resources coupled with associated storage and networking capabilities — is a rapidly growing and fast-evolving market. Gartner estimates that by 2015 nearly five percent of all virtual machines will run on external cloud IaaS. IT operations should transform itself into a "trusted service broker" able to work with the business to identify and procure cloud computing services — private, public and hybrid — to match various business requirements.