磁盘阵列系统I/O调度优化研究  

Research on I/O Scheduling Strategy for Disk Array System

作　　者：刘立波[1] 朱兰娟[1] 吴智铭[1] 

机构地区：[1]上海交通大学自动化系

出　　处：《微型电脑应用》2011年第8期34-35,41,73,共4页Microcomputer Applications

摘　　要：分析了RAID-10系统的并行I/O任务模型,应用模糊函数提出了衡量I/O服务的满意度指标,并应用此指标,提出了一种适用于RAID-10系统I/O任务调度算法,提高了RAID-10系统的实时性能,并改善了负载其平衡能力。With an embedded processor, I/O controller can offload the major I/O processing workload form the CPU, and increase the I/O performance. This paper addresses the essential issue in the design of parallel disk scheduling for RAID-10 devices. This paper explores multi-disk scheduling for I/O requests, using a novel fuzzy function. The new scheduling method can improves the response times of the request, and also improves the load balance performance of the system

关 键 词：RAID 并行I/O调度 模糊函数 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]