EM无法启动

em无法启动：

[oracle@smile ~]$ emctl dbconsole start

TZ set to PRC

EM Configuration issue. /u01/app/oracle/product/10.2.0/db_1/redhat_oracle not found.

选择进行重置：

[oracle@smile ~]$ emca -config dbcontrol db

STARTED EMCA at Mar 15, 2014 12:34:59 PM

EM Configuration Assistant, Version 10.2.0.1.0 Production

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

Enter the following information:

Database SID: ORCL

Listener port number: 1521

Password for SYS user:  

Password for DBSNMP user:  

Invalid username/password.

Password for DBSNMP user:  

Password for DBSNMP user: Invalid username/password.

Password for DBSNMP user:  

Password for DBSNMP user: Invalid username/password.

Password for DBSNMP user:  

Password for DBSNMP user: Invalid username/password.

Password for DBSNMP user:  

Password for SYSMAN user:  

Password for SYSMAN user: Email address for notifications (optional): [e-mail]

Outgoing Mail (SMTP) server for notifications (optional): 

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

You have specified the following settings

Database ORACLE_HOME ................ /u01/app/oracle/product/10.2.0/db_1

Database hostname ................ smile

Listener port number ................ 1521

Database SID ................ ORCL

Email address for notifications ............... [e-mail]

Outgoing Mail (SMTP) server for notifications ............... 

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

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

Mar 15, 2014 12:50:26 PM oracle.sysman.emcp.EMConfig perform

INFO: This operation is being logged at /u01/app/oracle/product/10.2.0/db_1/cfgtoollogs/emca/ORCL/emca_2014-03-15_12-34-58-PM.log.

Mar 15, 2014 12:50:26 PM oracle.sysman.emcp.DatabaseChecks performReposChecks

WARNING: 'shared_pool_size' must be greater than or equal to 80 MB. 

Mar 15, 2014 12:50:36 PM oracle.sysman.emcp.util.DBControlUtil startOMS

INFO: Starting Database Control (this may take a while) ...

Mar 15, 2014 12:52:15 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: Database Control started successfully

Mar 15, 2014 12:52:16 PM oracle.sysman.emcp.EMDBPostConfig performConfiguration

INFO: >>>>>>>>>>> The Database Control URL is http://smile:1158/em <<<<<<<<<<<

Enterprise Manager configuration completed successfully

FINISHED EMCA at Mar 15, 2014 12:52:16 PM

[oracle@smile ~]$ 

[oracle@smile ~]$ 

虽然有WARNING: 'shared_pool_size' must be greater than or equal to 80 MB.但还是重置完成

过程中忘记了DBSNMP的口令，附Oracle 10g默认安装用户及密码：

Username

Password

Description

See Also

CTXSYS

CTXSYS

The Oracle Text account

Oracle Text Reference

DBSNMP

DBSNMP

The account used by the Management Agent component of Oracle Enterprise Manager to monitor and manage the database

Oracle Enterprise Manager Grid Control Installation and Basic Configuration

LBACSYS

LBACSYS

The Oracle Label Security administrator account

Oracle Label Security Administrator's Guide

MDDATA

MDDATA

The schema used by Oracle Spatial for storing Geocoder and router data

Oracle Spatial User's Guide and Reference

MDSYS

MDSYS

The Oracle Spatial and Oracle interMedia Locator administrator account

Oracle Spatial User's Guide and Reference

DMSYS

DMSYS

The Oracle Data Mining account.

Oracle Data Mining Administrator's Guide

Oracle Data Mining Concepts

OLAPSYS

MANAGER

The account used to create OLAP metadata structures. It owns the OLAP Catalog (CWMLite).

Oracle OLAP Application Developer's Guide

ORDPLUGINS

ORDPLUGINS

The Oracle interMedia user. Plug-ins supplied by Oracle and third party format plug-ins are installed in this schema.

Oracle interMedia User's Guide

ORDSYS

ORDSYS

The Oracle interMedia administrator account

Oracle interMedia User's Guide

OUTLN

OUTLN

The account that supports plan stability. Plan stability enables you to maintain the same execution plans for the same SQL statements. OUTLN acts as a role to centrally manage metadata associated with stored outlines.

Oracle Database Performance Tuning Guide

SI_INFORMTN_SCHEMA

SI_INFORMTN_SCHEMA

The account that stores the information views for the SQL/MM Still Image Standard

Oracle interMedia User's Guide

SYS

CHANGE_ON_INSTALL

The account used to perform database administration tasks

Oracle Database Administrator's Guide

SYSMAN

CHANGE_ON_INSTALL

The account used to perform Oracle Enterprise Manager database administration tasks. Note that SYS and SYSTEM can also perform these tasks.

Oracle Enterprise Manager Grid Control Installation and Basic Configuration

SYSTEM

MANAGER

Another account used to perform database administration tasks.

Oracle Database Administrator's Guide

更详细内容参考：http://blog.csdn.net/dream19881003/article/details/5895525