摘要： 分析存储设备节点的负载特征，给出描述负载的扩展模型，以存储系统的实时负载为基础，提出一种对象的设备选择算法，使对象在存储节点间合理分布，有效调度存储节点的负载能力。仿真结果表明，在I/O请求依指数分布到达的条件下，启用负载分布算法能使系统负载均衡地分布在各存储节点间，有效降低负载不均衡现象。

关键词: 对象存储系统, 属性扩展, 负载均衡

Abstract: This paper analyzes the load characteristics of storage devices, and proposes the expansion model for load. An object distribute module is discussed, real-time load info are collected for an object distribution algorithm, which make the objects distribute in a reasonable way, and dispatch I/O capabilities effectively among storage nodes. Simulation results show that the algorithm enables the loads to distribute balanced, and reduce the emergence of load imbalance effectively.

Key words: Object-Based Storage System(OBSS), attributes expansion, load balance

中图分类号: 

• TP333