Internet应用的飞速发展,将人们置身于数字信息的海洋,较之以前,信息的内容也日渐丰富,不再局限于文字和图片、大量的愉其耳、悦其目的多媒体信息也呈现在大众的面前,给人们带来了听觉和视觉上享受。伴随着人们自身追求的不断提高,多媒体信息也愈来愈丰富多彩,相应的带来了信息数据的膨胀,同时对海量存储技术提出了更高的要求。建立一个超大容量、集中存储、可灵活扩充的数据存储系统已成为Internet时代人们对计算机应用的迫切 The rapid development of Internet applications places people in the ocean of digital information. Compared with the past, the contents of information are becoming more and more abundant. They are no longer confined to words and pictures. They have plentiful pleasures. Multimedia information is pleasing to the public In front of people to bring the auditory and visual enjoyment. With the continuous improvement of people’s own pursuit, multimedia information has also become more and more colorful, which in turn has led to the expansion of information and data, and put forward higher requirements for mass storage technology. The establishment of a large capacity, centralized storage, flexible expansion of data storage system has become the Internet era of computer applications urgently