面对国内外大型公有云供应商的激烈竞争,中小云厂商的生存难度加大。为此,建立一个基于相互合作的云联盟成为了这些厂商的一种可行策略。然而,在追求个体最大利益和保障联盟整体服务质量(quality of service,QoS)之间存在着复杂的博弈...面对国内外大型公有云供应商的激烈竞争,中小云厂商的生存难度加大。为此,建立一个基于相互合作的云联盟成为了这些厂商的一种可行策略。然而,在追求个体最大利益和保障联盟整体服务质量(quality of service,QoS)之间存在着复杂的博弈关系。针对上述问题,一种基于QoS的云联盟模型被提出,其涵盖云计算的三层架构。在应用层至虚拟层,引入了一种基于差分进化(differential evolution,DE)算法的创新任务分配策略,专门用于处理多QoS任务分配问题。在虚拟层至物理层,设计了合作与竞争并存的虚拟机迁移模型,适用于在云联盟博弈计算环境下实现虚拟机迁移的能耗与QoS之间的平衡。实验结果表明,所提出的解决方案改进了云计算环境的服务质量,并揭示了在云联盟环境中,合作和竞争两种模式的相对优势。展开更多
Virtualization technology provides an opportu- nity to acieve efficient usage of computing resources. How- ever, the management of services on virtualization infras- tructure is still in the preliminary stage. Contstr...Virtualization technology provides an opportu- nity to acieve efficient usage of computing resources. How- ever, the management of services on virtualization infras- tructure is still in the preliminary stage. Contstructing user service environments quickly and efficiently remains a chal- lenge. This paper presents a service oriented multiple-VM deployment system （SO-MVDS） for creating and configur- ing virtual appliances running services on-demand. The sys- tem provides a template management model where all the virtual machines are created based on the templates with the software environment pre-prepared. To improve the deploy- ment performance, we explore some strategies for incremen- tal mechanisms and deployment. We also design a service de- ployment mechanism to dynamically and automatically de- ploy multiple services within virtual appliances. We evalu- ate both the deployment time and I/O performance using the proposed incremental mechanism. The experimental results show that the incremental mechanism outperforms the clone one.展开更多
文摘面对国内外大型公有云供应商的激烈竞争,中小云厂商的生存难度加大。为此,建立一个基于相互合作的云联盟成为了这些厂商的一种可行策略。然而,在追求个体最大利益和保障联盟整体服务质量(quality of service,QoS)之间存在着复杂的博弈关系。针对上述问题,一种基于QoS的云联盟模型被提出,其涵盖云计算的三层架构。在应用层至虚拟层,引入了一种基于差分进化(differential evolution,DE)算法的创新任务分配策略,专门用于处理多QoS任务分配问题。在虚拟层至物理层,设计了合作与竞争并存的虚拟机迁移模型,适用于在云联盟博弈计算环境下实现虚拟机迁移的能耗与QoS之间的平衡。实验结果表明,所提出的解决方案改进了云计算环境的服务质量,并揭示了在云联盟环境中,合作和竞争两种模式的相对优势。
文摘Virtualization technology provides an opportu- nity to acieve efficient usage of computing resources. How- ever, the management of services on virtualization infras- tructure is still in the preliminary stage. Contstructing user service environments quickly and efficiently remains a chal- lenge. This paper presents a service oriented multiple-VM deployment system （SO-MVDS） for creating and configur- ing virtual appliances running services on-demand. The sys- tem provides a template management model where all the virtual machines are created based on the templates with the software environment pre-prepared. To improve the deploy- ment performance, we explore some strategies for incremen- tal mechanisms and deployment. We also design a service de- ployment mechanism to dynamically and automatically de- ploy multiple services within virtual appliances. We evalu- ate both the deployment time and I/O performance using the proposed incremental mechanism. The experimental results show that the incremental mechanism outperforms the clone one.
