- alter system switch logfile; 切换主库日志
- select max(sequence#) from v$archived_log; 对比主备库日志,同步才能做下一步
- alter database commit to switchover to standby with session shutdown; 有用户登录,主库强制切换
- 主备库都重启到 mount状态下,备库执行转换命令 ;alter database commit to switchover to primary
- alter database open; 备库打开库,然后主库打开库
- recover managed standby database disconnect from session; 主库执行MRP进程恢复
- select name,open_mode,database_role,protection_mode,switchover_status from v$database; 俩库都检查
- 主备切换完成
DG主备切换主要说明
猜你喜欢
转载自blog.51cto.com/7237876/2125562
今日推荐
周排行