一种共享式存储系统的备份与恢复  

Backup and Recovery of Shared Storage System

作　　者：刘振军[1] 徐伟[1] 贺翔[1] 许鲁[1] 

机构地区：[1]中国科学院计算技术研究所

出　　处：《计算机工程》2007年第10期240-242,共3页Computer Engineering

基　　金：国家自然科学基金资助项目"面向网络存储的集群系统的体系结构"(60373045)

摘　　要：VSVM是具有迭代式快照机制的逻辑卷管理系统。该文针对VSVM的应用性能和系统构成提出了备份/恢复的机制与方法,使VSVM逻辑卷上的用户数据及逻辑卷间快照结构都能得到保护和恢复,保持了VSVM与快照结构相关的性能特性。逻辑卷备份数据与快照创建时刻数据状态被独立分开,其余的机制和方法在此基础上使系统能够支持逻辑卷间彼此独立的备份策略,保证数据备份与恢复的步骤的简单性,为数据的实际备份应用带来方便。VSVM is a logical volume manager providing an ordinary-application-oriented iterative snapshot mechanism. This paper presents a series of backup/recovery mechanisms and methods that focus on VSVM performance and system construction to protect and restore user＇s data on volumes and the snapshot logic of these volumes, which can further maintain snapshot-logic-based system performance. The backup data of a （snapshot） volume is independent of its exactly initial data status. Based on that, other mechanisms and methods enable VSVM to support independent backup policies on different logical volumes, while maintaining the simplicity of data backup and recovery processes.

关 键 词：备份 迭代快照 共享存储 虚拟存储 

分 类 号：N945[自然科学总论—系统科学]