【摘要】 针对多媒体数据的爆炸式增长急需高性价比的存贮解决方案,提出了一种基于交叉开关的近线存贮系统.该系统利用大容量的SATA硬盘阵列取代机械手控制的磁带库,通过交叉开关矩阵切换实现与主机按需连接.给出了存贮系统的模型,对交叉开关矩阵的硬件和固件设计、主机调度策略的设计思想、系统端口编址、硬盘端口编址、内部开关编址分别进行了阐述.原型系统验证本系统可以很好地满足多媒体业务的需求.更多还原

【Abstract】 The roaring growth of multimedia data demands cost-effective storage solutions in urgent,so that a near-line storage system based on crossbar switch was presented.High-capacity SATA disk array was used in this system instead of tape library,and connects on-demand with the host was implemented through the crossbar switch instead of manipulator.The storage system model was proposed.The hardware and firmware design of crossbar switch matrix,scheduling policy of the host,address-planning of system port,hardware port and internal switch were respectively introduced.The prototype system showed that the proposed system could meet the demand for massive multimedia data storage.更多还原