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
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
CLC Number:
ZHANG Jun. Balanced Dispatching Algorithm in Object-Based Storage System[J]. Computer Engineering, 2010, 36(24): 57-58.
张军. 对象存储系统的均衡调度算法[J]. 计算机工程, 2010, 36(24): 57-58.