云存储的实现方式有多种,本文提出用分布式架构以及对象存储构建云存储。针对云存储的应用需求,分析了分布式架构和对象存储的实现方法和优势。云存储是应用层面和业务层面的概念。广义的云计算包括了云存储。但云存储服务作为实体是单独存在的。以提供计算能力为主的狭义的云计算,其使用的存储和云存储并不相同,例如,提供计算服务的云计算,其内部使用的存储一般都 There are many ways to implement cloud storage. This paper proposes to build cloud storage using distributed architecture and object storage. According to the application requirements of cloud storage, the methods and advantages of distributed architecture and object storage are analyzed. Cloud storage is an application and business level concept. Broad cloud computing includes cloud storage. But cloud storage service as a separate entity exists. In a narrowly defined cloud computing environment that provides computing power, storage and cloud storage are not the same. For example, in cloud computing that provides computing services, the storage used internally is generally