A Study for a Geographically Distributed Tier2 over Layer-Two Network

• Published in: 2014 International Conference on Intelligent Networking and Collaborative Systems pp. 152 - 156
• Main Authors: Bulfon, Cristina, Carlino, Gianpaolo, De Salvo, Alessandro, Doria, Alessandra, Graziosi, Carlo, Pardi, Silvio, Carboni, Massimo, Bolletta, Paolo, Puccio, Lorenzo, Capone, Vincenzo, Merola, Leonardo, Russo, Guido
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01-09-2014
• Subjects: Cloud; Computer architecture; Distributed Computing; File systems; Large Hadron Collider; Middleware; Network; Physics; Servers; Virtual machining
• DOI: 10.1109/INCoS.2014.103

Geographic layer-two links, joint with Cloud technologies and new generation network file systems allow to design a new class of services for distributed infrastructures. In this work, we present the architecture of the prototypal distributed Tier2 created between the two sites INFN-Roma1 and INFN-Napoli. The designed architecture takes advantage of a geographic L2 link used to propagate a GlusterFS file system to create a single storage area. On top of this layer, we created a complete Infrastructure as a Service to manage virtual machine in the two sites. The performed analysis demonstrates that the latency does not affect the stability of the global system. Finally, with a set of use-cases we show the effectiveness of our approach.