Oracle RAC EM工具日常管理

1 检查em集群配置:

emca -displayConfig dbcontrol -cluster 

2 创建em集群配置:

emca -config dbcontrol db - repos create -cluster

3 重新创建em集群配置:

3.1 删除早期DBCONSOLE创建的用户：

drop role MGMT_USER;

drop user MGMT_VIEW cascade;

drop user sysman cascade;

3.2 删除早期DBCONSOLE创建的对象：

drop PUBLIC SYNONYM MGMT_TARGET_BLACKOUTS;

drop public synonym SETEMVIEWUSERCONTEXT;

drop public synonym MGMT_AVAILABILITY;

drop public synonym MGMT_CURRENT_AVAILABILITY;

drop public synonym MGMT_SEVERITY_OBJ


3.3 重建

emca -config dbcontrol db - repos recreate -cluster 注:recreate很重要，重建不要忘记了，另外需要删除一些以前创建的：

4 启动em：

emctl
start dbconsole  

5 关闭em:

emctl stop dbconsole 

6 检查em运行状况

emctl status dbconsole 

测试如下：

[oracle@rac1 emd]$ emca -displayConfig dbcontrol -cluster

STARTED EMCA at Dec 9, 2015 10:21:13 PM

EM Configuration Assistant, Version 11.2.0.0.2 Production

Copyright (c) 2003, 2005, Oracle.  All rights reserved.

Enter the following information:

Database unique name: rac

Service name: rac

Do you wish to continue? [yes(Y)/no(N)]: Y

Dec 9, 2015 10:21:23 PM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/app/oracle/cfgtoollogs/emca/rac/emca_2015_12_09_22_21_11.log.

Dec 9, 2015 10:21:38 PM oracle.sysman.emcp.EMDBPostConfig showClusterDBCAgentMessage

INFO: 

****************  Current Configuration  ****************

 INSTANCE            NODE           DBCONTROL_UPLOAD_HOST

----------        ----------        ---------------------

rac               rac1              rac1

rac               rac2              rac1

Enterprise Manager configuration completed successfully

FINISHED EMCA at Dec 9, 2015 10:21:39 PM
[oracle@rac1 emd]$ emctl start dbconsole  

Oracle Enterprise Manager 11g Database Control Release 11.2.0.1.0 

Copyright (c) 1996, 2009 Oracle Corporation.  All rights reserved.
https://rac1:1158/em/console/aboutApplication
Starting Oracle Enterprise Manager 11g Database Control ....................