高可靠磁盘阵列是采用相对廉价的、小容量的高性能磁盘驱动器为单元，通过一定的方式，组成磁盘阵列以提高磁盘容量，提高数据的传输率。目前这一技术已经在国内外引起计算机界的广泛关注。本文将对廉价磁盘冗余阵列体系结构、磁盘阵列控制器及实现过程中理论上和工程上需要解决的若干问题进行一些探讨和研究。 High reliability disk array is relatively cheap, low-capacity high-performance disk drives as a unit, through a certain way, the composition of the disk array to increase disk capacity and improve data transfer rates. At present, this technology has aroused widespread concern in the computer community at home and abroad. This article will discuss some issues that need to be solved theoretically and technically in the structure of redundant array of inexpensive disks, disk array controller and its implementation.