How to change SYSMAN Password on OEM 12C/13C

• Check the database status

SQL> select instance_name,status,version from v$instance, v$database;
INSTANCE_NAME STATUS VERSION
---------------- ------------ -----------------
oemdb OPEN 19.0.0.0.0

• To change sysman password, you need sys password of database.

Note: In case if you don’t know the sys password, you can change the sys password before proceeding further.

• To change the sys password

SQL> alter user sys identified by *********;
User altered.

On OMS node.

• Check the current status of OMS

bash-4.2$ ./emctl status oms
Oracle Enterprise Manager Cloud Control 13c Release 4
Copyright (c) 1996, 2020 Oracle Corporation.  All rights reserved.
WebTier is Up
Oracle Management Server is Up
JVMD Engine is Up
BI Publisher Server is Up

• Stop OMS

bash-4.2$ ./emctl stop oms -all
Oracle Enterprise Manager Cloud Control 13c Release 4
Copyright (c) 1996, 2020 Oracle Corporation. All rights reserved.
Stopping Oracle Management Server...
WebTier Successfully Stopped
Oracle Management Server Already Stopped
Oracle Management Server is Down
JVMD Engine is Down

• Change the SYSMAN password using below command.

emctl config oms -change_repos_pwd -use_sys_pwd -sys_pwd <sys password> -new_pwd <new sysman password>

bash-4.2$ ./emctl config oms -change_repos_pwd -use_sys_pwd -sys_pwd ******** -new_pwd *********
Oracle Enterprise Manager Cloud Control 13c Release 4
Copyright (c) 1996, 2020 Oracle Corporation. All rights reserved.
Changing passwords in backend ...
Passwords changed in backend successfully.
Updating repository password in Credential Store...
Successfully updated Repository password in Credential Store.
Restart all the OMSs using 'emctl stop oms -all' and 'emctl start oms'.
Successfully changed repository password.

• Start OMS 

bash-4.2$  ./emctl start oms
Oracle Enterprise Manager Cloud Control 13c Release 4
Copyright (c) 1996, 2020 Oracle Corporation.  All rights reserved.
Starting Oracle Management Server...
WebTier Successfully Started
Oracle Management Server Already Started
Oracle Management Server is Up
JVMD Engine is Up
Starting BI Publisher Server ...
BI Publisher Server Already Started
BI Publisher Server is Up

• Check OMS status

bash-4.2$ ./emctl status oms
Oracle Enterprise Manager Cloud Control 13c Release 4
Copyright (c) 1996, 2020 Oracle Corporation.  All rights reserved.
WebTier is Up
Oracle Management Server is Up
JVMD Engine is Up
BI Publisher Server is Up