中文摘要：

专业的大型磁盘存储系统均发展为包含多块磁盘的大型阵列系统。随着系统中的磁盘数目的不断增加,由磁盘失效引起的数据丢失的可能性越来越大。对于由存储系统中部分磁盘失效所引起的数据丢失的问题,目前业界公认的比较好的解决方案是使用冗余容错编码技术来实现磁盘的容错。在工程实践中,目前广泛应用的编码方法大多局限于双容错阵列码。随着系统规模的进一步加大,3容错甚至更多容错的编码方法已引起研究者的重视。今后的5至10年间,对于3容错或多容错的编码方法的研究将会成为新的热点。

英文摘要：

Large professional hard disk storage systems are generally arranged as array systems consisting of many hard disks. However, as the number of hard disks increases, the probability of disk fault and data loss also increases. A redundant fault-tolerant coding technique can be employed that allows for faults among hard disks. Currently, only double fault-tolerant array codes are in widespread use; but with expansion of system size, different fault-tolerant coding streams will need to be investigated. Experts generally agree that triple- fault-tolerant coding will become the dominant technique with the next five to ten years.