面对日益增长的海量数据，传统的存储设备早已跟不上时代的步伐，也适应不了时代对数据处理的要求，因此，在这样的背景下，云存储技术应运而生，云存储也必然会成为存储领域的主流。云存储是将大量不同类型的存储设备通过软件集合起来协同工作,共同对外提供数据存储服务的新型技术。 本文首先介绍了关于云存储的综述，其中包含对云存储的概念和原理以及云存储对个人和企业的应用的介绍，然后详细的对当下几款云存储产品功能进行对比和分析，最后是对上一部分的总结以及对云存储技术的展望。 【关键词】云计算 云存储 功能对比 发展

With the continuous growth of the big data, traditional storage devices had not kept pace and also can not adapt to the requirement of era .In this background , cloud storage technology is created. And cloud storage will certainly become the mainstream in storage areas. The concept of cloud storage is similar to the cloud computing, it is applied through the cluster, grid or distributed file system functionality,the network of many different types of storage devices using software to work together, common external data storage and access functions of a business system. (1) At the first part ,this paper introduces the review of the cloud storage, including the concept of cloud storage and the personal and enterprise applications of cloud storage .At the second part ,the paper introduces the specific comparison and analysis for the current cloud storage product features. The last part is the result analysis of the second part and the technical outlook about cloud storage. Key word : cloud computing cloud storage function contrast development