摘要
目的:建立Oracle11g Data Guard和角色转换过程,利用Data Guard根据实际情况搭建容灾环境。方法:利用Oracle11g的新特性来创建Data Guard,并采用多种主、备角色转换的方式来实现数据库的容灾。结果:Data Guard在有限的投入下最小化了数据库在计划和非计划中的宕机时间,以更简便有效的方式实现了医院信息系统的容灾。结论:Oracle Data Guard作为Oracle数据库中的一种高可用性方案,在提供了一种低投入和高效能相结合的灾备方式的同时也大大提高了生产库数据的一致性和安全性。
Objective To determine the role conversion process of Oraclellg DataGuard in order to establish disaster recovery environment. Methods New characteristics of Oraclellg were used to establish DataGuard, and the disaster recovery of the database was realized through the conversion of the main and standby roles. Results The estimated and nonestimated downtime was minimized in limited cost with DataGuard, and the disaster recovery of HIS was realized in an easy way. Conclusion As a high-availability solution of Oracle database, DataGuard provides a disaster recovery mode with a low cost and high efficacy, and the data consistency and safety in the production library are enhanced greatly.
出处
《医疗卫生装备》
CAS
2013年第5期62-65,68,共5页
Chinese Medical Equipment Journal
