Storage

Virtualization-Based Bandwidth Management for Parallel Storage Systems

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Executive Summary

This paper presents a new parallel storage management approach which supports the allocation of shared storage bandwidth on a per-application basis. Existing parallel storage systems are unable to differentiate I/Os from different applications and meet per-application bandwidth requirement. This limitation presents a hurdle for applications to achieve their desired performance, which will become even more challenging as High-Performance Computing (HPC) systems continue to scale up with respect to both the amount of available resources and the number of concurrent applications. This paper proposes a novel solution to address this challenge through the virtualization of Parallel File Systems (PFSes).

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