云存储是指通过集群技术和分布式文件系统,将网络中大量不同类型的存储设备集合起来协同工作,共同对外提供数据存储和业务访问功能。本文主要介绍了云存储构架、云存储的技术支撑、技术前提和云存储得以实现的理论思想。 Cloud storage refers to the cluster technology and distributed file system, a large number of different types of network storage devices together to work together to provide external data storage and business access functions. This paper introduces the cloud storage architecture, cloud storage technology support, technical prerequisites and cloud storage to achieve the theoretical idea.