修改主库PROD1密码后，查看configuration状态看到以下报错：

[oracle@edgzrip1-PROD1 ~]$ dgmgrl sys/oracle
DGMGRL for Linux: Version 11.2.0.3.0 - Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

Welcome to DGMGRL, type "help" for information.
Connected.
DGMGRL> show configuration;

Configuration - PROD1.us.oracle.com

Protection Mode: MaxAvailability
Databases:
PROD1 - Primary database
Error: ORA-16810: multiple errors or warnings detected for the database

DG - Physical standby database
Error: ORA-01017: invalid username/password; logon denied

Fast-Start Failover: DISABLED

Configuration Status:
ERROR

解决方法：

1、关闭备库(DG)

2、将主库密码文件orapwPROD1传输到备库，并修改文件名为：orwpwDG

[oracle@edgzrip1-PROD1 ~]$ scp /u01/app/oracle/product/11.2.0/dbhome_1/dbs/orapwPROD1 edgzrip2:/u01/app/oracle/product/11.2.0/db_1/dbs/orapwDG

3、启动备库（DG）

4、再次查看configuration信息

[oracle@edgzrip2-DG dbs]$ dgmgrl sys/oracle
DGMGRL for Linux: Version 11.2.0.3.0 - Production

Copyright (c) 2000, 2009, Oracle. All rights reserved.

Welcome to DGMGRL, type "help" for information.
Connected.
DGMGRL> show configuration verbose;

Configuration - PROD1.us.oracle.com

Protection Mode: MaxAvailability
Databases:
PROD1 - Primary database
DG - Physical standby database

Properties:
FastStartFailoverThreshold = '30'
OperationTimeout = '30'
FastStartFailoverLagLimit = '30'
CommunicationTimeout = '180'
FastStartFailoverAutoReinstate = 'TRUE'
FastStartFailoverPmyShutdown = 'TRUE'
BystandersFollowRoleChange = 'ALL'

Fast-Start Failover: DISABLED

Configuration Status:
SUCCESS