Showing papers by "Peter Honeyman published in 2008"
15 Jun 2008
TL;DR: Evaluation with the NAS Grid Benchmarks demonstrates that the presented replication scheme for NFSv4 provides comparable and often better performance than GridFTP, the de facto standard for Grid data sharing.
Abstract: To meet the rigorous demands of large-scale data sharing in global collaborations, we present a replication scheme for NFSv4 that supports mutable replication without sacrificing strong consistency guarantees. Experimental evaluation indicates a substantial performance advantage over a single-server system. With the introduction of a hierarchical replication control protocol, the overhead of replication is negligible even when applications mostly write and replication servers are widely distributed. Evaluation with the NAS Grid Benchmarks demonstrates that our system provides comparable and often better performance than GridFTP, the de facto standard for Grid data sharing. Copyright © 2008 John Wiley & Sons, Ltd.
10 citations
19 May 2008
TL;DR: A calculus that takes into consideration the I/O characteristics of applications and failure behavior of distributed storage nodes is developed and prescribed, prescribing a file system replication strategy that maximizes the utilization of computational resources for long-running and compute-intensive grid applications.
Abstract: Replication is a key technique for improving fault tolerance but can introduce considerable performance overhead under some circumstances. To explore the tradeoff between performance and failure resilience, we develop a calculus that takes into consideration the I/O characteristics of applications and failure behavior of distributed storage nodes. With the developed evaluation model, we then prescribe a file system replication strategy that maximizes the utilization of computational resources for long-running and compute-intensive grid applications.
5 citations