OpenStack is an orchestration suite to create clouds mainly focused to create Infrastructure as a Service (IaaS) solutions. OpenStack has multiple components, each one aiming to provide a piece to the cloud. As I write, last OpenStack stable version is Juno that has the following components:
Computing is one of the core parts of any IaaS solution, as well as OpenStack. This is also one of the two oldest modules of OpenStack, since it has been part of the project since its first version, Austin, which was released in October, 2010. Nova derives from NASA's Nebula platform.
Nova is a cloud computing fabric controller. It is designed to manage and automate pools of computer resources and can work with many hypervisors such as KVM, VMware, and Xen.
It is written in Python and uses many external libraries. Nova was created with horizontal scalability in mind; in fact, it's able to scale horizontally on commercial off-the-shelf (COTS) components...