基于Linux系统的容双故障软磁盘阵列平台Deraid

Double-error Tolerance Disk-array Platform Deraid Based on Linux

提出并设计实现了一个基于Linux系统平台的容双故障的通用软磁盘阵列平台Deraid。它容许阵列中任意两个磁盘同时出错而保证数据不丢失。可以为各种需要大容量存储的系统提供容量大、吞吐量高的存储服务,同时具有良好的可扩展性,可为各种数据布局提供一个用方便的实验平台。文章讨论了Deraid的总体设计和实现的技术要点,并给出了具体的应用和性能测试结果。

This paper designs and implements a double-error tolerance disk-array platform which is based on Linux. It can keep data integrity even under the condition that any two disks fail in the disk array. It can provide high-capability and high-throughput storage service for those system need mass cache. It has good flexibility and expansibility, providing an easy to-use platform for variable data layout test. This paper discusses the over-all design and key technical point of Deraid, and gives its test results.