High Level Models for IaaS Cloud Architectures

This paper explains how ontology can be used to model various IaaS architectures. OpenStack is the largest open source cloud computing IaaS platform. It has been gaining wide spread popularity among users as well as software and hardware vendors over past few years. It's a very flexible system that can support a wide range of virtualization scenarios at scale. In our work we propose a formalization of OpenStack architectural model that can be automatically validated and provide suitable meta-data to configuration management tools. The OWL-DL based ontology defines service components and their relations and provides foundation for further reasoning. Model defined architectures can support simple all-in-one architecture as as well as large architectures with clustered service components to achieve High Availability.