Hiroki Kashiwazaki

A Design and Implementation of Global Distributed POSIX File System on the Top of Multiple Independent Cloud Services

We propose an extension of distcloud-fs for achieving a global distributed POSIX file system in intercloud environment. The file system works in intercloud environment, that is, on the top of multiple independent cloud services. The important capability of the intercloud extension is that there is no need for users to take care of infrastructure layer, while the file system stores data into multiple cloud services, transparently and automatically. As the result, cloud users may have diversity about vendors and locations for data platform, as discussed in various intercloud research projects. In this paper, we describe the architecture of the distcloud-fs and its intercloud extension. We also describe design and implementation of the prototype and discuss some typical use cases of the file system with practical demonstrations.

Message from the ADMNET Workshop Organizers

The ADMNET workshop series is focusing on the discussion of the advance of the stateof-the-art, research and development in the area of architecture, design, deployment and management of networks and Internet-based applications. This workshop is also a forum for designers, developers and administrators of the networks and applications. ADMNET covers a wide field of topics such as Network Architecture and Design, QoS, Scalability Solutions, Fairness, Optimality, and other aspects of Network Resource Sharing, Network Deployment, Management and Operation, Network Security, Network Applications and their Operation, Meta-Heuristics and Soft Computing Approaches for Networking Technologies, Network Metrics, Network Growth and Percolation Models, Modeling of Users and Network-Based Services, Digital Convergence, ITIL, User Policy and Service Level Agreements, Computer Ethics and Education.

or: How I Learned to Stop Worrying and Love Cloud Computing

In this paper, several aspects according to Thoman Bittman of Gartner Inc., NIST, Eric Schmidt, Peter F. Drucker and Norbert Wiener are introduced. Even it refers to social responsibility of engineering and technologies. Why we are worrying the cloud computing, especially public cloud? Why it is difficult for us to love the cloud computing? An author wrap it up irresponsibly.

An Evaluation of Adaptive Traffic Engineering for Delivering High Bandwidth Movie on Overlay Routing Network

Penetration of high definition (HD) video cameras and broadband networks make us be able to stream easily over-HD quality movies onto the Internet. When we distribute the movies each other between some facilities, packet losses caused by cross traffic become a serious problem. This paper proposes an adaptive traffic engineering method by using discrete event simulator. This method searches suboptimal paths combination from the enormous combinations of paths determined from the pairs of all source node and all destination node. We use the cloud computing resource to evaluate these combinations rapidly, which we can utilize powerful computing resource by. This method is tested in ns-2 simulation on the 11 nodes network. The results show that proposed traffic engineering method has better adaptability and performance in cross traffic avoidance.