ORA-16794: database guard is on for primary database

文档解释

ORA-16794: database guard is on for primary database

Cause: The database guard was turned on for the primary database.

Action: Issue the ALTER DATABASE GUARD NONE command to turn off the guard and verify that Data Guard health check error or warning is cleared.

ORA-16794: database guard is on for primary database是由数据库守护启用所导致的一个错误。数据库守护用于检测出现在原始数据库上的突变,并阻止其进一步传播到备份数据库,以确保备份数据库保持一致性。

官方解释

常见案例

一般处理方法及步骤

1.禁用主数据库上的数据库守护,以便可以继续进行联机备份或移动数据文件或分区表空间:

SQL > ALTER SYSTEM DISABLE DATABASE GUARD;

2.运行RMAN操作:

RMAN > BACKUP DATABASE;

3. 将数据库守护重新启用:

SQL > ALTER SYSTEM ENABLE DATABASE GUARD;

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