CAJ | 학술논문

在以节约能源和提高能源利用率为目的的绿色云计算背景下，提出一种基于层次分析法的虚拟机迁移评估模型。该模型通过基于属性聚类的协同过滤方法，针对虚拟机的属性空间进行评分，给出了最佳绿色虚拟机迁移策略的决策方法。通过建立虚拟机任务资源使用率指标体系及两两比较矩阵，采纳五级评分制对虚拟机迁移及任务资源占用进行了评估。实验结果表明，提出的模型和方法能够显著提高云计算集群的能源利用率、节约能源的消耗。该方法对绿色云计算的研究具有重要意义。
재이절약능원화제고능원이용솔위목적적록색운계산배경하，제출일충기우층차분석법적허의궤천이평고모형。해모형통과기우속성취류적협동과려방법，침대허의궤적속성공간진행평분，급출료최가록색허의궤천이책략적결책방법。통과건립허의궤임무자원사용솔지표체계급량량비교구진，채납오급평분제대허의궤천이급임무자원점용진행료평고。실험결과표명，제출적모형화방법능구현저제고운계산집군적능원이용솔、절약능원적소모。해방법대록색운계산적연구구유중요의의。
For enhancement of energy conservation and resource utilization nature of the green cloud computing, an ana-lytical hierarchy process based virtual machine migration evaluation model is proposed. Such model utilizes the attribute clustering based collaborative filtering to rate attribute space of virtual machines for the decision making of best strategy of green virtual machine migration. By constructing pair-wise comparison matrix and adopting five-point rating scale, the model is able to evaluate the liability of migration and resource usage of virtual machine. Experimental result shows that the proposed model and method not only can significantly improve the resource utilization rate but also save the energy con-sumption of cloud server cluster. It has the vital significance to the research work of green cloud computing.