A View Of Cloud Computing
A View Of Cloud Computing
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DOI：
10.2991/ijndc.2013.1.1.2
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Juhnyoung Lee
中科院分区：
文献类型：
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作者：
Juhnyoung Lee
当今的IT基础架构承受着巨大的压力，并且发现很难跟上。在分布式计算环境中，高达85%的计算能力处于空闲状态。每一美元的IT支出中，有66%用于维护当前的IT基础设施，而不是增加新功能。在历史上，运营已经工业化，变得更加智能。云计算的定位是实现未来IT交付的工业化。它是分布式计算领域广泛采用多种技术进步的自然演变，包括虚拟化、网格计算、自主计算、效用计算和软件即服务。它为基于IT的服务的消费和交付提供了一种新的范例-它通过用于IT管理的自助服务用户界面提供了增强的用户体验。它从最终用户那里抽象出技术细节，这样他们就不再需要专门知识或控制支持他们的“云中”技术基础设施。它提供基于按次付费的灵活定价。它支持灵活的交付和采购模式，包括私有云、公共云和混合云。最后，它提供了IT基础设施的自动配置和弹性扩展。本文从技术进步、IT交付和部署模式以及经济性等方面对云计算的不同视角提出了几点看法。
Today’s IT infrastructure is under tremendous pressure and is finding it difficult to keep up. In distributed computing environments, up to 85 percent of computing capacity sits idle. 66 percent of every dollar on IT is spent on maintaining current IT infrastructures versus adding new capabilities. In history, operations have industrialized to become smarter. Cloud Computing is positioned to industrialize the IT delivery of the future. It is a natural evolution of the widespread adoption of multiple technical advances in the distributed computing area including virtualization, grid computing, autonomic computing, utility computing and software-as-a-service. It provides a new paradigm for consumption and delivery of IT based services – It provides an enhanced user experience with a self-service user interface for IT management. It abstracts the technical details from end-users so that they no longer need expertise in, or control over, the technology infrastructure “in the cloud” that supports them. It provides flexible pricing based on pay per usage. It enables flexible delivery and sourcing models including private, public and hybrid clouds. Finally, it provides automated provisioning and elastic scaling of IT infrastructure. This paper presents several views on different perspectives of Cloud Computing, including technical advancement, IT delivery and deployment modes, and economics.