The encryption key has been placed in the file: /u01/app/oracle/product/11.2.0/dbhome_1/enmoedu1.example.com_PROD1/sysman/config/emkey.ora. Ensure this file is backed up as the encrypted data will become unusable if this file is lost.
***********************************************************
Enterprise Manager configuration completed successfully
FINISHED EMCA at May 22, 2019 5:53:43 PM
[oracle@enmoedu1 ~]$
如果没有解锁和修改 SYSMAN的密码会有提示：
如果忽略sysman的账号解锁和密码修改，EM创建完成后将无法登陆，细心的网友会发现没有sys角色的选项：
问题处理方法：
根据EM创建完成的提示，EM的配置文件
在：/u01/app/oracle/product/11.2.0/dbhome_1/enmoedu1.example.com_PROD1/sysman/config/
首先，停止当前的EM dbconsole，否则，修改无效；如果先修改sysman账户，再停EM，sysman会再次被锁：
[oracle@enmoedu1 config]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Thu May 23 08:29:38 2019
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> alter user sysman account unlock;
User altered.
SQL> quit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@enmoedu1 config]$ sqlplus sysman/oracle@PROD1
SQL*Plus: Release 11.2.0.3.0 Production on Thu May 23 08:34:59 2019
Copyright (c) 1982, 2011, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> quit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
[oracle@enmoedu1 config]$
[oracle@enmoedu1 config]$ emctl stop dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation. All rights reserved.
https://enmoedu1.example.com:1158/em/console/aboutApplication
Stopping Oracle Enterprise Manager 11g Database Control ...
... Stopped.
[oracle@enmoedu1 config]$
[oracle@enmoedu1 config]$ sqlplus sysman/oracle@PROD1
SQL*Plus: Release 11.2.0.3.0 Production on Thu May 23 08:35:41 2019
Copyright (c) 1982, 2011, Oracle. All rights reserved.
ERROR:
ORA-28000: the account is locked
Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied
Enter user-name:
ERROR:
ORA-01017: invalid username/password; logon denied
SP2-0157: unable to CONNECT to ORACLE after 3 attempts, exiting SQL*Plus
[oracle@enmoedu1 config]$
现在应该清楚，sysman账户被锁是因为EM启动和关闭，重试密码次数过多导致的。
正确重置EM账号SYSMAN的密码步骤：
1、关闭em dbconsole
[oracle@enmoedu1 config]$ emctl stop dbconsole
Oracle Enterprise Manager 11g Database Control Release 11.2.0.3.0
Copyright (c) 1996, 2011 Oracle Corporation. All rights reserved.
https://enmoedu1.example.com:1158/em/console/aboutApplication
Stopping Oracle Enterprise Manager 11g Database Control ...
... Stopped.
[oracle@enmoedu1 config]$
2、解锁sysman账号，修改sysman密码
[oracle@enmoedu1 config]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.3.0 Production on Thu May 23 08:29:38