基于网络磁盘结构的Local Migration Manager设计-《计算机技术与发展》

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Author(s):: ZHAO Yan-hong ; KAKESHITA Tetsuro; [1]Xi＇ an Jiaotong University[2]Dept. of Information Science, Faculty of Science and Engineering, Saga University

摘要:: 为构成高性能的数据库，磁盘阵列的活用是很有必要的。其中尤为重要的是实现磁盘阵列之间负载的均衡。为此，设计了网络磁盘结构系统，该系统在磁盘阵列高负载的情况下也能够进行动态的负载均衡，并且具有优良的耐故障性。对于网络磁盘结构构成要素中的Local Migration Manager（LMM）进行了设计。列举出了LMM连接的MainBus上传送的信息，定义了信息形式，信息的传送与Bus的宽度相符呈分割进行；在LMM的设计方法中定义了LMM的内部数据结构；在此基础上，制作了LMM的算法

Abstract:: For constructing high-performance database servers, it is essential to make the best use of parallel disks. It is important to execute load balancing among disks for parallel disks. Hence, proposed the net disk architecture for this purpose. This system can perform efficiently for dynamic load balancing even though the disk arrays are under heavy load conditions. The architecture also achieves high fault tolerance. In this paper, designed the Local Migration Manager （LMM） in the net disk architecture. At first defined message structure on the main bus to which the LMM is connected. Messages are splitted to transfer through the fixed size bus. Next defined LMM specification together with the internal data structure. Based on these, the algorithms of LMM are developed