Experiments on Network Services for the Grid

—For demanding Grid applications that use resources at different cluster sites a reservation mechanism ensures the availability of resources to guarantee a certain level of QoS. Besides computational and storage resources we see the network as a reservable resource. Our approach to QoS is to book resources in the network for exclusive usage. For this purpose, a flexible reservation mechanism is needed to meet the requirements of Grid applications and schedulers. In this paper we introduce a wider notion of network service than previous work. Special focus is laid on a file transfer service that guarantees the timely availability of data at the different Grid sites. To cope with these requirements, different strategies and algorithms for a flexible network reservation service are evaluated systematically. Algorithms using a single path strategy are compared to algorihms using multiple paths. Our simulation results show that data transport via multiple paths can lead to a higher use...

• Type: Conference
• Year: 2007
• Where: LCN
• Authors: Christoph Barz, Peter Martini, Markus Pilz, Florian Purnhagen
• Keywords: Grid Applications, LCN 2007, Reservation Mechanism, flexible Reservation Mechanism