Energy-Efficient Strategy with a Speed Switch and a Multiple-Sleep Mode in Cloud Data Centers
Due to the rapid growth of energy costs and increasingly strict environmental standards,energy consumption has become a significant expenditure for the operating and maintaining of a cloud data center.To improve the energy efficiency of cloud data centers,in this paper,we propose an energy-efficient strategy with a speed switch and a multiple-sleep mode.According to current traffic loads,a proportion of Virtual Machines(VMs)operate at a low speed or a high speed,while the remaining VMs either sleep or operate at a high speed.In our strategy,we develop a continuous-time queueing model with an adaptive service rate and a partial synchronous vacation.We construct a two-dimensional Markov chain based on the total number of requests in the system and the state of all the VMs.By using the method of a matrix geometric solution,we mathematically estimate the energy saving level of the system.Numerical experiments with analysis and simulation show that our proposed energy-efficient strategy can effectively reduce the energy consumption on the premise of guaranteeing the Quality of Service of CDCs.
Cloud data center Energy efficiency Speed switch Multiple-sleep Matrix geometric solution
Shunfu Jin Shanshan Hao Wuyi Yue
School of Information Science and Engineering,Yanshan University,Qinhuangdao 066004,China Department of Intelligence and Informatics,Konan University,Kobe 658-8501,Japan
国际会议
河北秦皇岛
英文
143-154
2017-08-21（万方平台首次上网日期，不代表论文的发表时间）