基于SAN的分布式卷管理架构及实现

随着SAN存储量的增长,提出了存储虚拟化的管理技术来解决存储管理、异步平台的数据共享、存储系统的可用性和可扩展性等方面的要求。文章主要探讨了存储虚拟化的分类,给出了一个基于SAN的分布式卷管理架构,该架构将操作系统中纵向虚拟存储管理概念扩展到不同磁盘、磁盘阵列的横向虚拟化管理,并在此架构下实现了分布式快照系统,该系统解决了海量数据备份时的I/O带宽问题。原型系统分析表明,新架构可以较好地解决分布式卷管理的问题,在实施数据迁移和数据拷贝时,实现海量数据瞬间完成与瞬间恢复。

Architecture and Implement of the Distributed Volume in SAN

With growing explosion of data in SAN, Storage Virtualization technology must be used to satisfy the demand of storage resource management , shareing of data between of heterogeneous platforms, the availability and scalability of the storage system. The virtual storage are beginning to lead the direction of Grid storage,The paper primarily probes into the virtual storage,Discussing the sort of virtual storage and system fabric. Implementing the distribute volume system. the management of the block is simple In SAN,Otherwise the paper brings forword the distribute snapshot system with the new feather of the data instant recovery, Resolves the question of I/O band. Brings forword and implements a way of virtual storage.