一种适用于集群的高可用存储模型的研究

The Research of High Available Storage Model for Cluster

存储系统是集群系统中重要的组成部分,数据放置策略的优劣直接影响存储系统的性能.针对现有集群数据放置策略单一、可用性不高的特点,根据文件大小,结合现有的数据放置策略提出了hybrid-declustering放置策略,建立了集群存储系统模型,并在模型的磁盘管理中引入了分组的思想,实现了数据的分布式和高可用存储,和现有模型相比,提高了集群系统存储的可用度.

The storage system is an important part of a cluster, and data placing strategy directly affects the performance of the storage system. Most of existing cluster are shortage of strategies of data placing and high availability. Aiming at the different size of files, a new strategy is put forward. In addition, the scheme in which nodes are divided into different groups is employed and makes the distributed storage and high availability come true.