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1.引言在存储容量需求不断增长的同时,由于越来越多的关键信息转变为数据,数据对个人和企业的价值也就越来越高,人们对存储系统的存取性能、7×24小时数据可用性、存储低成本、系统可扩展性、高可靠性和安全性等方面提出了迫切的存储需求。针对这些存储需求,设计具有高数据传输率、可靠数据存储和备份、智能数据组织和管理等特点的海量数据存储系统逐渐成为存储系统设计的热点问题。
1. INTRODUCTION As storage capacity demands continue to grow, as more and more critical information is transformed into data, the value of data to individuals and businesses becomes higher and higher, and people’s access to storage systems, 7 × 24 Hour data availability, low storage costs, system scalability, high reliability and security put forward the urgent storage needs. In response to these storage requirements, designing mass data storage systems with high data transfer rates, reliable data storage and backup, intelligent data organization and management has gradually become a hot issue in storage system design.