一种无中心的云存储架构分析

云存储是云计算的基础和支撑,它通过多种技术将存储设备抽象为虚拟的存储资源池,相对于传统存储而言具有高可靠、高可用、高扩展、低成本等优势。云存储系统基于不同的技术架构有着不同的特点,从是否存在元数据节点的角度,对有中心和无中心的典型云存储系统做了简要介绍,并对一种开源的无中心系统Gluster从系统组成、体系架构、工作原理、系统特点等几方面做了重点分析,并认为这是一种很有发展前景的云存储系统。

Analysis on Non-center Cloud Storage Architecture

Cloud storage is the foundation and support of cloud computing,it abstracts the storage device as the virtual storage resource pool through a variety of techniques,and as compared with traditional storage,is of superiorities,including high reliability,high availability,highly scalabity,and low cost.Cloud storage system,for based on different technical architecture,has different features.From the existence of meta-data nodes,this article describes the with-center and non-center typical cloud storage system,and analyzes an open source non-center system ＂Gluster＂ from aspects of its system composition,system architecture,working principle,and system features.And this is regarded as a very promising cloud storage system.