ORA-16655: specified target standby database invalid

文档解释

ORA-16655: specified target standby database invalid

Cause: The attempted command was not allowed because fast-start failover was enabled for this Data Guard configuration and the target standby database specified in the command differs from the standby database that was indicated by the FastStartFailoverTarget property associated with the current primary database.

Action: Retry the attempted command by specifying the standby database that is indicated by the FastStartFailoverTarget property that is associated with the current primary database. Alternatively, fast-start failover may be disabled. Then retry the command using the originally specified target standby database.

ORA-16655错误指示传递给Data Guard的指令未找到或已失效的STANDBY数据库。

官方解释

ORA-16655:指定的目标standby数据库无效

原因：指定的数据库状态不正确，无法执行此操作。

常见案例

当使用DGMGRL命令将生产数据库添加到Broker管理的物理数据库时，可能会遇到ORA-16655错误。

一般处理方法及步骤

1.确保数据库状态正确，然后重试错误操作。

2.如果数据库未正常启动，则检查alert日志来检查可能的原因。

3.如果alert日志没有任何问题，可以在DGMGRL中尝试重新注册数据库，以更新数据库状态。