ORACLE DG 主备库开启与关闭顺序

oracle DG 启动和关闭顺序

启动顺序：先启动备库，后启动主库

关闭顺序：先关闭主库，后关闭备库

1、正确打开备库和主库

备库:

SQL> STARTUPMOUNT;

SQL>ALTERDATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;

主库:

SQL> STARTUPMOUNT;

SQL> ALTERDATABASE ARCHIVELOG;

SQL> ALTER DATABASEOPEN;

2、正确关闭顺序

主库

SQL>SHUTDOWN IMMEDIATE;

备库:

SQL> ALTER DATABASE RECOVER MANAGED STANDBYDATABASE CANCEL;

SQL>SHUTDOWN IMMEDIATE;