A three-phase energy-saving strategy for cloud storage systems

作者：Long Saiqin; Zhao Yuelong^*; Chen Wei

来源：Journal of Systems and Software, 2014, 87(1): 38-47.

DOI：10.1016/j.jss.2013.08.018

• Energy saving
• Cloud storage systems
• Cost efficient

In the running process of cloud data center, the idle data nodes will generate a large amount of unnecessary energy consumption. Furthermore, the resource misallocation will also cause a great waste of energy. This paper proposes a three-phase energy-saving strategy named TPES in order to save energy and operational costs for cloud suppliers. The three phases are replica management based on variable replication factor, cluster reconfiguration according to the optimal total costs and state transition based on observed and predicted workloads. These three phases save energy for the system at different levels which enhance the adaptability of our strategy. We evaluate our strategy using the expanded CloudSim toolkit and the results show that the proposed strategy achieves better energy reduction under different conditions in comparison with the existing schemes.

• 出版日期2014-1
• 单位华南理工大学