高速大容量存储系统的应用设计

针对航空遥感领域要求存储系统容量大、存储速度快、可靠性高、使用环境苛刻等特点,本文介绍了所设计的高速大容量存储系统的组成机制和实现方案。系统采用固态存储芯片FLASH（闪存）为存储介质,FPGA（现场可编程逻辑门阵列）为存储阵列的核心控制器,针对外部高速数据的输入,引入了并行总线操作、流水线操作技术。针对闪存芯片存在的无效块,利用无效块管理,切实提高了对高速实时数据存储的可靠性。从而成功实现用高密度、相对低速的FLASH存储芯片对高速实时数据的可靠存储。测试结果表明,该存储系统存储速度高,容量大,性能稳定。

Application Design of High-Speed Large Capacity Storage System

In order to meet requirements such as large capacity,high speed,high reliability and being able to operating in severe environment to storage system used in aviation remote sensing field,a storage system with high-speed and large capacity is designed,and composition and implementation of the system is provided.Solid-state storage chip FLASH is used as storage medium,field programmable gate array(FPGA) is used as core controller of storage array;the parallel bus operation and pipeline operation technologies are introduced into the system for high-speed external data input.Additionally,reliability of high-speed real-time data storage is improved by way of invalid-block management.Therefore,high-speed and real-time data storage can be achieved reliably by using of high density and low-speed FLASH storage chips.Test results indicate that this storage system features high-speed,large capacity and stable performance.