创建EM监控的过程：
[oracle@enmoedu1 ~]$ emca -config dbcontrol db
STARTED EMCA at May 22, 2019 5:39:31 PM
EM Configuration Assistant, Version 11.2.0.3.0 Production
Copyright (c) 2003, 2011, Oracle. All rights reserved.
Enter the following information:
Database SID: PROD1
Listener port number: 1521
Listener ORACLE_HOME [ /u01/app/oracle/product/11.2.0/dbhome_1 ]:
Password for SYS user:
Password for DBSNMP user:
Password for SYSMAN user:
Email address for notifications (optional):
Outgoing Mail (SMTP) server for notifications (optional):
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You have specified the following settings
Database ORACLE_HOME ................ /u01/app/oracle/product/11.2.0/dbhome_1
Local hostname ................ enmoedu1.example.com
Listener ORACLE_HOME ................ /u01/app/oracle/product/11.2.0/dbhome_1
Listener port number ................ 1521
Database SID ................ PROD1
Email address for notifications ...............
Outgoing Mail (SMTP) server for notifications ...............
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----------------------------------------------------------------------
WARNING : While repository is dropped the database will be put in quiesce mode.
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Do you wish to continue? [yes(Y)/no(N)]: y
May 22, 2019 5:39:50 PM oracle.sysman.emcp.EMConfig perform
INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/PROD1/emca_2019_05_22_17_39_31.log.
May 22, 2019 5:39:51 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Dropping the EM repository (this may take a while) ...
May 22, 2019 5:42:46 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully dropped
May 22, 2019 5:42:48 PM oracle.sysman.emcp.EMReposConfig createRepository
INFO: Creating the EM repository (this may take a while) ...
May 22, 2019 5:52:01 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Repository successfully created
May 22, 2019 5:52:14 PM oracle.sysman.emcp.EMReposConfig uploadConfigDataToRepository
INFO: Uploading configuration data to EM repository (this may take a while) ...
May 22, 2019 5:52:57 PM oracle.sysman.emcp.EMReposConfig invoke
INFO: Uploaded configuration data successfully
May 22, 2019 5:53:00 PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Securing Database Control (this may take a while) ...
May 22, 2019 5:53:07 PM oracle.sysman.emcp.util.DBControlUtil secureDBConsole
INFO: Database Control secured successfully.
May 22, 2019 5:53:07 PM oracle.sysman.emcp.util.DBControlUtil startOMS
INFO: Starting Database Control (this may take a while) ...
May 22, 2019 5:53:41 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: Database Control started successfully
May 22, 2019 5:53:41 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration
INFO: >>>>>>>>>>> The Database Control URL is https://enmoedu1.example.com:1158/em <<<<<<<<<<<
May 22, 2019 5:53:43 PM oracle.sysman.emcp.EMDBPostConfig invoke
WARNING:
************************ WARNING ************************
Management Repository has been placed in secure mode wherein Enterprise Manager data will be encrypted.