【dg】dataguard关闭开启及顺序

关闭：

主库
shutdown immediate;

备库
alter database recover managed standby database cancel;
shutdown immediate;

 

 

 

开启：

备库：

 

Startup nomount

SQL> alter database mount standby database;

SQL> alter database recover  managed standby database disconnect from session;

SQL> alter database recover managed standby database cancel;

SQL> alter database open read only;

主库：

Startup