云存储环境下基于QoS的动态副本策略研究
Research on the Dynamic Replica Strategy in Cloud Storage Environment Based on QoS
林清滢 1陆锡聪 1冯健文1
作者信息
- 1. 韩山师范学院计算机科学与工程系，潮州 521041
- 折叠
摘要
为了解决静态副本策略中易造成负载不均衡、用户服务质量需求得不到满足等问题，提出一种动态副本生成算法和动态副本调整算法；在CloudSim平台上仿真实验，结果表明，与默认副本策略相比，该策略能够根据用户的访问需求动态为数据文件增删副本，大大地减少用户访问时间，满足用户的服务质量需求。
Abstract
The load balancing may be destroyed and the user QoS requirement is not satisfied due to the static replica strategy in the existing default replica strategy. In order to solve these problems, proposes a dynamic replica generation algorithm and a dynamic replica adjust algorithm. Simulates the experiment using CloudSim toolkit, the results show that the proposed strategy is superior to the default replica strategy be-cause it dynamically adds and deletes replicas according to the user's access requirements, which will reduce response time and satisfy user's QoS requirement.
关键词
云存储/副本策略/动态副本/服务质量Key words
Cloud Storage/Replica Strategy/Dynamic Replica/Quality of Service引用本文复制引用
基金项目
广东省科技计划项目(2012B010100036)
韩山师范学院科研团队项目(LT201102)
韩山师范学院科研团队项目(LT201101)
出版年
2015
NETL
NSTL
维普
万方数据