中文摘要：

文中针对Oracle数据库跨平台容灾的目的,通过了解各种数据库复制解决方案,对各种复制技术进行分析和对比。研究基于Redo log复制技术的数据库复制软件原理。结合模拟常用系统环境进行方案设计的试验,得出基于Redo log复制技术的数据库备份方式,不仅具有高效的资源利用、跨平台数据库同步、主备库双活、断点续传等功能,可以实现Oracle数据库的高可用、提高保护数据的安全性、降低业务系统中断时间、减少硬件设备投入成本等迫切需求。而且支持跨平台容灾,为将来核心生产数据库从小型机平台转型到X86架构平台奠定基础。

英文摘要：

According to the purpose of the disaster based on Oracle database cross-platform and theunderstanding of various database replication solution, a variety of replication techniques are analyzed and compared The research is based on the Redo log database replication software principle of replication technology. Combined with simulation system environment for the experiment of scheme design, A database backup method based on log Redo replication technology is obtained. On one hand, this method has high efficiency of resource utilization, cross-platform database synchronization, advocate for library double live, breakpoint continuingly, and other functions, which can realize the high availability of Oracle database, improve the protection of data security, reduce business system outage time, reduce the hardware cost and other pressing needs On the other hand ,it can support Cross platform disaster recovery and lay the foundation for the future production of the core database from the minicomputer platform transition to X86 platform.