A Lightweight, GPU-Based Software RAID System

M. Curry, L. Ward, A. Skjellum, R. Brightwell
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引用次数: 18

Abstract

While RAID is the prevailing method of creating reliable secondary storage infrastructure, many users desire more flexibility than offered by current implementations. Traditionally, RAID capabilities have been implemented largely in hardware in order to achieve the best performance possible, but hardware RAID has rigid designs that are costly to change. Software implementations are much more flexible, but software RAID has historically been viewed as much less capable of high throughput than hardware RAID controllers. This work presents a system, Gibraltar RAID, that attains high RAID performance by offloading the calculations related to error correcting codes to GPUs. This paper describes the architecture, performance, and qualities of the system. A comparison to a well-known software RAID implementation, the md driver included with the Linux operating system, is presented. While this work is presented in the context of high performance computing, these findings also apply to a general RAID market.
一个轻量级的,基于gpu的软件RAID系统
虽然RAID是创建可靠的二级存储基础设施的流行方法,但许多用户希望比当前实现提供的灵活性更高。传统上,RAID功能主要是在硬件中实现的,目的是尽可能实现最佳性能,但是硬件RAID具有严格的设计,更改成本很高。软件实现要灵活得多,但是软件RAID历来被认为在高吞吐量方面远不如硬件RAID控制器。这项工作提出了一个系统,直布罗陀RAID,通过将与纠错码相关的计算卸载到gpu来实现高RAID性能。本文描述了该系统的体系结构、性能和质量。并与Linux操作系统中包含的md驱动程序进行了比较。虽然这项工作是在高性能计算的背景下提出的,但这些发现也适用于一般的RAID市场。
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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