采用RS码的高可靠RAID系统的可靠性分析

RELIABILITY ANALYSIS OF HIGH RELIABLE RAID USING RS CODE

独立磁盘冗余阵列（ＲＡＩＤ）技术是解决ＣＰＵ处理速度和Ｉ／Ｏ系统能力之间瓶颈的有效方法．本文介绍一种采用Ｒｅｅｄ－Ｓｏｌｏｍｏｎ（ＲＳ）码作为冗余校验编码的新型的容错模型，其纠错能力为纠单个突发错和纠双删除错．本文将详细论述和分析这种容错模式的可靠性，并同Ｎ＋１奇偶校验模式的可靠性进行了比较．

Redundant Array of Inexpensive Disks (RAID) is the best way to reduce the disparity between the processing speed of CPU and the ability of I/O system. A new fault tolerant model using RS (Reed-Solomon) code is proposed in thispaper. The error correcting ability of RAID with such model can correct singleburst-error and double-erasure-errors.This paper mainly discusses the reliability ofRAID system using RS code.