关键词: 容灾备份 快照 快照空间 远程服务器 本地服务器

Abstract:

Snapshot is a major technology for online hot backup, it can effectively reduce the down-time needed to perform conventional copy operations in the storage subsystem. Based on analyzing all kinds of snapshot system and the requirements of a DR system, using the snapshot technique, the architecture of a disk-based disaster-tolerant backup system is presented. It has three main components： snapshot driver, local server and remote server. And we implemment it on the AIX platform.

Key words: disaster tolerance, snapshot, snapspace, remote server, local server