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。
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 1/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.
出处
《计算机工程》
CAS
CSCD
北大核心
2010年第24期57-58,61,共3页
Computer Engineering
关键词
对象存储系统
属性扩展
负载均衡
Object-Based Storage System（OBSS）
attributes expansion
load balance
