S. Shigeta, A. Savva, Y. Imai, T. Yoshida, K. Fukui, K. Nishikawa, and H. Kishimoto (Japan)
Platform for Cloud Computing, Large-scale Data Center, Physical Resource Management, Network Isolation
Cloud Computing is attracting considerable attention as a paradigm shift in the way of supplying and using computing resources. To realize a platform of Cloud Computing, large-scale data centers equipped with a huge number of physical resources have to be constructed and operated. One of the big concerns is then how to reduce the resource management and operational cost. Moreover, for reasons of security, users require isolation of their virtual systems running on a shared Cloud platform. Especially, business application systems need strong isolation to protect their private and confidential information. Accordingly, we have been developing new technologies to support the operation and management of such next-generation data centers. In this paper, we describe the design and implementation of ITcell system a platform for IaaS (Infrastructure as a Service) style Cloud Computing. Our concept for ITcell is treating physical resources like cells in living organisms—numerous, easily replaceable and integrated in a larger whole. In the development of ITcell system, we addressed and solved the following issues: (1) efficient management of physical resources; (2) rapid integration of new physical servers; (3) managing a VAS (virtual application system) as a single unit; and (4) ensuring network isolation between VAS instances on a shared platform.
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