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廉价冗余盘阵列（ＲＡＩＤ）因为能够有效提高计算机数据传输率和数据可靠度，已经成为计算机外存储系统的重要组成部分。近年来，为了进一步提高ＲＡＩＤ的请求响应时间和数据可靠度，改善ＲＡＩＤ性能，涌现了多种新技术。文章针对ＲＡＩＤ性能的各个方面，对这些新技术进行了详细介绍。
Cheap Redundant Disk Array (RAID) has become an important part of an off-computer storage system because it can effectively improve the computer data transfer rate and data reliability. In recent years, in order to further improve the RAID’s request response time and data reliability, improve RAID performance, there have been many new technologies. The article describes various aspects of RAID performance in detail about these new technologies.