具有快照功能的Linux文件系统  

Linux file system with snapshot function

作　　者：熊安萍[1] 唐巍[1] 蒋溢[1] 

机构地区：[1]重庆邮电大学计算机学院,重庆400065

出　　处：《计算机应用》2010年第A01期179-181,共3页journal of Computer Applications

基　　金：重庆市信息产业发展专项资金资助项目(200811004)

摘　　要：介绍了快照(snapshot)技术的作用及工作原理,分析了一种具有snapshot功能的Linux文件系统ext3ss的关键元数据的数据结构以及基于时间偏移的版本管理技术。运用此方法可以在文件系统级添加ext3ss功能,提供基于EPOCH时间的文件访问接口。最后对ext3ss进行了测试和分析。The snapshot technology in storage system was introduced. The key meta data structure and time-shifting version management of ext3ss, a Linux file system with snapshot function, were analyzed. The method can add the file system with snapshot function, providing a time-shifting interface that permits a real-time and continuous view of data in the past. Finally, ext3ss was tested and analyzed.

关 键 词：快照 写时拷贝 文件系统 EXT3 数据备份 

分 类 号：TP316.8[自动化与计算机技术—计算机软件与理论]