探析云计算的实现机制

Analysis on implementation mechanism of cloud computing

云计算是一种新的商业模式,它采用资源重构的方法,实现对专用性资产和通用性资产的再造和升级;就云计算的体系结构而言,自下而上分为物理资源层、资源池层、管理中间件层和SOA构建层四个层级;它将所有的网络软硬资源集中起来,以Iaas、Paas和Saas三种服务形式提供给用户;云计算的实现机制主要包括虚拟化机制、海量数据存储机制、分布式计算机制和Web界面交互机制等。

Cloud computing is a new business model which adopts the method of resource reconfiguration to achieve the reengineering and upgrade of specialized assets and general assets. In terms of the cloud computing architecture, it is divided into four levels from bottom to top： physical resource level, resource pool layer, management middleware layer and SOA building levels. It gathers all of the hard and soft network resources and provides them to the users with three services： Iass, Paas and Saas. The implementation mechanisms of cloud computing mainly includes virtualization mechanism, mass data storage mechanism, distributed computing mechanism and Web interface interaction mechanism, etc.