PNFS/PVFS2 Over InfiniBand: Early Experiences

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Executive Summary

The computing power of clusters has been rapidly growing up towards petascale capability, which requires petascale I/O systems to provide data in a sustained high-throughput manner. Network File System (NFS), a ubiquitous standard used in most existing clusters, has shown performance bottleneck associated with the single server model. pNFS, a parallel version of NFS, has been proposed in this context to eliminate the performance bottleneck while maintain the ease of management and interoperability features of NFS.

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