Springer ISBN-13: 978-3319337678
ORCA is an extensible platform for building infrastructure servers based on a foundational leasing abstraction. These servers include Aggregate Managers for diverse resource providers and stateful controllers for dynamic slices. ORCA also defines a brokering architecture and control framework to link these servers together into a federated multi-domain deployment. This chapter reviews the architectural principles of ORCA and outlines how they enabled and influenced the design of the ExoGENI Racks deployment, which is built on the ORCA platform. It also sets ORCA in context with the GENI architecture as it has evolved.