RAID控制器中磁盘接口控制器流水线设计与实现  

Design and realization of disk interface processors with parallel pipelines in RAID controllers

作　　者：王玉林[1] 游红[2] 李广军[3] 

机构地区：[1]电子科技大学计算机科学与工程学院 [2]78179部队 [3]电子科技大学通信与信息工程学院

出　　处：《电子技术应用》2010年第7期44-47,51,共5页Application of Electronic Technique

基　　金：国家自然科学基金(60676014)

摘　　要：在研究磁盘接口功能和现有磁盘接口设计的基础上,提出了一种带四级流水的磁盘接口设计模型,并对该模型实现过程中的模块间通信问题和模块间缓冲管理问题进行了相应的分析和设计。通过FPGA仿真与实验结果表明,在各种情况下,磁盘接口的吞吐率都有提高,在高写请求率和重负载两种情况下尤为显著。Based on the research on current designs and disk interface controller＇s function, a parallel pipeline model is presented in the disk interface controller design in the paper. Two main problems are the communication and the buffer management between the modules in the implementation of the model. This paper discusses and designs the two problems in detail. The model is implemented in FPGA and the experiment results show that the throughput of the presented disk interface controller can be improved in all cases, especially in heavy workloads and in the high writing request ratio case.

关 键 词：磁盘阵列 流水线设计 磁盘接口控制器 吞吐量 

分 类 号：TN929.11[电子电信—通信与信息系统]