本篇内容介绍了“SQLServer2012镜像主库挂掉怎么切换到镜像备库”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!故障现象:SQLServer2012镜像环境:主节点1从节点1主节点的主库服务挂了,无法启动。强行启动从库。
在备库执行:
USE master; ALTER DATABASE ec SET PARTNER FORCE_SERVICE_ALLOW_DATA_LOSS;之后会恢复两分钟,备机的数据库就能用了。数据库日志:
The mirrored database “ec” is changing roles from “MIRROR” to “PRINCIPAL” because the mirroring session or availability group failed over due to FORCE_SERVICE_ALLOW_DATA_LOSS. This is an informational message only. No user action is required.Starting up database ‘ec’免费主机域名.1 transactions rolled forward in database ‘ec’ (7:0). This is an informational message only. No user action is required.0 transactions rolled back in database ‘ec’ (7:0). This is an informational message only. No user action is required.CHECKDB for database ‘ec’ finished without errors on 2016-09-01 15:33:43.907 (local time). This is an informational mes免费主机域名sage only; no user action is required.如果主机恢复了就切回去。–原来的主服务器恢复,可以继续工作,需要重新设定镜像,第一次可能会报个错在备库执行:USE master; ALTER DATABASE ec SET PARTNER RESUME; –恢复镜像 ALTER DATABASE ec SET PARTNER FAILOVER; –切换主备主备切换完成。“SQLServer2012镜像主库挂掉怎么切换到镜像备库”的内容就介绍到这里了,感谢大家的阅读。如果想了解更多行业相关的知识可以关注云技术网站,小编将为大家输出更多高质量的实用文章!
本篇内容主要讲解“怎么降低微信H5域名总是被屏蔽”,感兴趣的朋友不妨来看看。本文介绍的方法操作简单快捷,实用性强。下面就让小编来带大家学习“怎么降低微信H5域名总是被屏蔽”吧!我先来科普一下为什么咱们的域名总是被微信拦截?1、微信会有系统检测,只要检测到你的域…