沈阳工业大学学报2012，Vol.34Issue(4)：438-445,468,9.
一种基于副本机制的智能存储系统I／O优化方法
Optimizationmethod for I/O of IND storage system based on replica mechanism
摘要
Abstract
To solve the problem that the performance of I/O components for IND storage system is hard to be improved, a novel replica mechanism was designed through analyzing the I/O request process. The programmable NIC was used to store the the replica of read-only high-frequency accessing hot data in the replica space of NIC. A replica metadata table was established in the memory of IND units to guide the management of IND units to the replica space. The online DCA was designed to ensure the timeliness of replica data in NIC space. In the requst process, the replica data would not be transferred by bus. When the data packet reached the INC buffer zone, the replica data would be filled in the corresponding positions and then sent out, which could reduce the flow of the bus and further enhance the throughput of the system as well as improve the performance of the existing devices. The experimental results show that the proposed method can reduce the flow of the IND bus by above 30%, increase the throughput of the system by above 40%, improve the performane of the system obviously, and possesses the better theoretical and practical values.关键词
体系结构/高性能/副本机制/副本选择算法/吞吐率/智能网络存储/性能瓶颈/总线流量Key words
architecture/high-performance/replica mechanism/DCA/thoughtput/IND storage/performancebottleneck/bus flow分类
信息技术与安全科学引用本文复制引用
刘霖,赵跃龙,谢晓玲,王国华..一种基于副本机制的智能存储系统I／O优化方法[J].沈阳工业大学学报,2012,34(4):438-445,468,9.基金项目
国家自然科学基金资助项目 （）
高校博士点学科专项基金资助项目 （）
广州市科技计划项目（2010J1-C0401）. （）
