Accessing the Oracle Enterprise Manager Database Control

At the end of a successful database creation, Oracle Enterprise Manager is automatically launched in your Web browser and the database is started. To access Enterprise Manager Database Control at other times, make sure the dbconsole process is running on the server, then follow these steps:

Point your Web browser to the following URL:
```
http://hostname:portnumber/em
```
For example, if you installed the database on a host computer named comp42, and the installer indicated that your Enterprise Manager Console HTTP port number is 5500 (also recorded in the $ORACLE_HOME/install/portlist.ini file), enter the following URL:
```
http://comp42:5500/em
```
If the database is up, Enterprise Manager displays the Database Control Login page.

If the database is down and needs to be re-started, Enterprise Manager displays the Startup/Shutdown and Perform Recovery page. If this is the case, click Startup/Shutdown and enter the host and target database login usernames and passwords. For the database user and password, use SYS and the password you specified during installation.
Click OK to start the database. In the Confirmation screen, click YES to start the database in open mode.
Log in to the database using a username that is authorized to access the Database Control. This initially could be SYS or SYSTEM. Use the password you specified for the account during the database installation.

Enterprise Manager displays the Database Home page (Figure 3-4).

The property pages across the top of the page enable you to access performance, administration, and maintenance pages for managing your database. The functionality provided by these pages is discussed in other chapters of this book.

The various sections of the Database Home page and related links provide information about the database's environment and health. For example, the Alerts, Related Alerts, and Diagnostic Summary sections warn you of errors and performance problems that are impacting the operation of your database. You can click the provided links to see more detail about the problem area, and even to obtain recommendations for resolving the problem. This is discussed in Chapter 10, "Monitoring and Tuning the Database".

Figure 3-4 Database Home Page

Description of "Figure 3-4 Database Home Page"