Computer Science ›› 2018, Vol. 45 ›› Issue (5): 317-321.doi: 10.11896/j.issn.1002-137X.2018.05.055

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Availability Analyzing of Virtual Cluster Nodes Based on State Transition Diagram

CHE Jian-hua, REN Shou-gang, YU Yong and XU Huan-liang   

  • Online:2018-05-15 Published:2018-07-25

Abstract: Aiming at the availability evaluation of virtual cluster nodes,a state transition diagram-based virtual cluster node availability model was proposed.First,five lifecycle states of virtual cluster nodes are established by analyzing the deployment mode and running process of virtual cluster nodes,and the transition relations between five lifecycle states are expounded.Then,the state transition diagrams of a virtual cluster node without a standby node and with a standby node are respectively presented,and the corresponding availability models of virtual cluster nodes are proposed based on the above state transition diagrams.Many numerical simulation experiments were conducted after setting the parameter values of the proposed availability models according to the running log of a real virtual cluster system.The experimental results show that the analytical results of the proposed availability models are in accordance with the real availability level and they are able to reflect the availability law of virtual cluster nodes properly.

Key words: Virtual machine,Virtual cluster node,State transition diagram,Availability model,Cluster system

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