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arXiv 1408.6891cs.DC
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软件定义的云计算:架构元素和开放式挑战

Software-Defined Cloud Computing: Architectural Elements and Open Challenges

Rajkumar Buyya, Rodrigo N. Calheiros, Jungmin Son, Amir Vahid Dastjerdi, Young Yoon

摘要:

现有云服务的多样性对服务提供商实施合理的软件级别协议(SLA)提出了挑战,该协议规定了服务质量(QoS)以及在未实现QoS的情况下的惩罚。为了避免这种惩罚,同时使基础设施以最低的能源和资源浪费运行,需要对基础设施进行不断的监测和调整。我们将软件定义的云计算或简称为软件定义的云(SDC)称为通过将虚拟化概念扩展到数据中心中的所有资源来自动化最佳云配置过程的方法。SDC使得能够容易地重新配置和适配云基础设施中的物理资源,以通过可以描述和管理包括云环境的各个方面的软件来更好地适应对QoS的需求。在本文中,我们提出了一个体系结构的SDC的数据中心,重点是移动云应用程序。我们提出了一个评估,展示了潜力的SDC在两个用例-QoS感知的带宽分配和带宽感知,节能VM的位置,并讨论了在这个新兴领域的研究挑战和机遇。

英文摘要:

The variety of existing cloud services creates a challenge for service providers to enforce reasonable Software Level Agreements (SLA) stating the Quality of Service (QoS) and penalties in case QoS is not achieved. To avoid such penalties at the same time that the infrastructure operates with minimum energy and resource wastage, constant monitoring and adaptation of the infrastructure is needed. We refer to Software-Defined Cloud Computing, or simply Software-Defined Clouds (SDC), as an approach for automating the process of optimal cloud configuration by extending virtualization concept to all resources in a data center. An SDC enables easy reconfiguration and adaptation of physical resources in a cloud infrastructure, to better accommodate the demand on QoS through a software that can describe and manage various aspects comprising the cloud environment. In this paper, we present an architecture for SDCs on data centers with emphasis on mobile cloud applications. We present an evaluation, showcasing the potential of SDC in two use cases-QoS-aware bandwidth allocation and bandwidth-aware, energy-efficient VM placement-and discuss the research challenges and opportunities in this emerging area.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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