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The Lustre file system is a parallel file system used in a wide range of HPC environments, small to large, such as oil and gas, seismic processing, the movie industry, and scientific research to address a common problem they all have and that is the ever increasing large amounts of data being created and needing to be processed in a timely manner. In fact it is the most widely used file system by the world’s Top 500 HPC sites.

With Lustre in use it’s common to see end-to-end data throughput over GigE networks in excess of 110 MB/sec, InfiniBand double data rate (DDR) links reach bandwidths up to 1.5 GB/sec, InfiniBand Quad Data Rate (QDR) links reach over 2.5 GB/sec, and 10GigE interfaces provide end-to-end bandwidth of over 1 GB/sec. Lustre can scale to tens of thousands of clients. At Oak Ridge National Laboratory and their production Spider file system, Lustre runs with over 25,000 clients, over 10PB of storage, and achieves an aggregate IO throughput of 240 GB/sec.

This white paper addresses the many advantages that the Lustre file system offers to High Performance Computing clusters and how Lustre, a parallel file system, improves the overall scalability and performance of HPC clusters.