摘要： 快照技术是产生在线热备份的重要技术手段,其实现相当复杂。文章对Linux内核的卷管理系统的快照技术进行了分析和研究,讨论了与快照技术相关的数据结构、源逻辑卷的写请求处理以及快照逻辑卷的读请求处理。
关键词:
卷管理,
快照,
地址映射,
在线备份,
Copyonwrite
Abstract: Snapshot is a major technology for online hot backup, and its implementation is very complicated. This paper discusses several aspects as following: the organization of related data structures, treatment of write request on original logical volume, treatment of read request on snapshot logical volume.
中图分类号:
董欢庆,李战怀,王彦龙,石维盛. Linux卷管理系统Snapshot技术的分析与研究[J]. , 2004, 30(02): 55-57.
DONG Huanqing,LI Zhanhuai,WANG Yanlong,SHI Weisheng. Analysis and Research of the Snapshot Technique of Logical Volume Management System on Linux[J]. , 2004, 30(02): 55-57.