Evaluation of active storage strategies for the lustre parallel file system

J. Piernas, J. Nieplocha, Evan Felix
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引用次数: 107

Abstract

Active Storage provides an opportunity for reducing the amount of data movement between storage and compute nodes of a parallel filesystem such as Lustre, and PVFS. It allows certain types of data processing operations to be performed directly on the storage nodes of modern parallel filesystems, near the data they manage. This is possible by exploiting the underutilized processor and memory resources of storage nodes that are implemented using general purpose servers and operating systems. In this paper, we present a novel user-space implementation of Active Storage for Lustre, and compare it to the traditional kernel-based implementation. Based on microbenchmark and application level evaluation, we show that both approaches can reduce the network traffic, and take advantage of the extra computing capacity offered by the storage nodes at the same time. However, our user-space approach has proved to be faster, more flexible, portable, and readily deployable than the kernel-space version.
lustre并行文件系统主动存储策略的评估
活动存储为减少并行文件系统(如Lustre和PVFS)的存储和计算节点之间的数据移动量提供了机会。它允许在现代并行文件系统的存储节点上,在它们管理的数据附近,直接执行某些类型的数据处理操作。这可以通过利用使用通用服务器和操作系统实现的存储节点的未充分利用的处理器和内存资源来实现。在本文中,我们提出了一种新的用户空间的Lustre主动存储实现,并将其与传统的基于内核的实现进行了比较。基于微基准测试和应用级评估,我们表明这两种方法都可以减少网络流量,同时利用存储节点提供的额外计算能力。但是,我们的用户空间方法已被证明比内核空间版本更快、更灵活、可移植且易于部署。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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