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Oracle Administrator toolbar includes these five applications and the Net8 Assistant. To start the Oracle Administrator toolbar, from the Start menu on the task bar, choose Programs, Oracle Enterprise Manager, Administrator Toolbar. The Administrator toolbar functions much like the Windows task bar and the Microsoft Office shortcut bar.

The third way to access the database administration applications is from the Enterprise Manager console application launch palette. But before you can use the console, it is necessary to build a repository. Unlike earlier releases of Enterprise Manager, the process of repository construction is performed automatically. The first time the console starts with a given user ID, the Repository Manager describes the sub-components that are necessary to start the console. When you respond OK to the prompt, Repository Manager creates a repository for itself, Enterprise Manager, and Software Manager, and starts the Discover New Services Wizard. If there are nodes on the network that already have Oracle Intelligent Agent configured, this wizard will communicate with the remote nodes to populate the navigation tree on the console. Because this function can be performed at any time, you can skip it for a fast start.

CAUTION
Because a repository is built automatically during the first login, you must be careful to avoid creating a repository for a system user, such as SYSTEM, in the SYSTEM tablespace. A repository in the SYSTEM tablespace might cause fragmentation and space constraints that adversely affect performance and manageability.

After the Enterprise Manager console opens, use the Database Administration Tools from the Applications toolbar to explore the Instance Manager, the Schema Manager, and other Database Administration Tools. The remaining tools—Backup Manager, Data Manager, and Software Manager—can only be accessed from here in the console.

The fourth way to access the Database Administration Tools is also from within the console on the menu bar by selecting Tools, Applications.

Enterprise Manager is now ready to use, but there are no databases or listeners known to Enterprise Manager unless the Discover New Services Wizard took advantage of remote intelligent agents to automatically discover and define them. To add databases and nodes representing systems, from the menu bar choose Navigator, Service Discovery, Manually Define Services to start the Service Definition Wizard. The wizard guides database administrators through the process of defining listeners and databases to Enterprise Manager. Database Administration Tools are now accessible in the fifth and final way by right-clicking one of the newly added databases in the upper-left Navigator window. From the mouse menu, select Related Tools to see a context-sensitive list of tools available to access the selected database (see Figure 9.2).

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FIG. 9.2
Context-sensitive menus
enable Schema
Manager access to
ORCL through the
console.

Using the Console Functions

When database administrators become familiar with Enterprise Manager, console functions are not usually the attraction of the product. Most database administrators become interested in the product because of the Database Administration Tools and the Performance Pack. However, a significant portion of these components are crippled or do not function at all without the Event Management and Job Scheduling components working with remote intelligent agents:

Use the information in this section to implement the full architecture so that the promise of Enterprise Manager is fulfilled. The focus on implementation and configuration of the integrated console functions found in this book is intended to enable database administrators to take full advantage of all the other useful functions that depend on the console components.

The Enterprise Manager console centralizes control of the database environment. Whether managing a single database or a global enterprise, the console provides consolidated

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management. There are four primary console functions, each of which is represented in a pane in the console window:

The Navigator provides a tree structure representing all databases, servers, Net8 listeners, Web servers, and groups of these components. Context-sensitive access to the Database Administration Tools is only a few mouse clicks away. Map provides a way to geographically track the status of systems and drill down into systems to examine listeners and databases. In conjunction with the event functionality, Map shows system status at a glance.

Event management and job scheduling are dependent on the availability of remote intelligent agents. The Event Management component communicates with remote intelligent agents to track activities and conditions on remote systems. Using this capability, Enterprise Manager sends mail, pages people, or runs a job to correct a fault or capture diagnostic information for later analysis. If a job runs to resolve or prevent a fault, the Job Scheduler component handles the task. In addition, the Job Scheduler can launch, monitor, and report completion of a series of activities on remote systems.

Understanding the Integrated Console Functions

Some console functions apply to all of the other components of Enterprise Manager to enforce security, make applications available, manage the four panes of the console window, and manage the communications daemon.

SecuritySecurity functionality for Enterprise Manager is managed from the console and is accessible from the menu by selecting File, Preferences. The database administrator can store the passwords necessary to access the services managed by Enterprise Manager. When many user IDs with different passwords are required to administer a large environment, you often resort to writing them down on slips of paper or in notebooks. It is impossible to remember 20 user IDs and the associated continually changing passwords. The user preferences at least enable database administrators to store passwords in a secured environment where they will not accidentally fall into the wrong hands.

Launch PalettesLaunch palettes are small toolbars that can float as independent windows or as toolbars at the top or bottom of the console. The Launch palettes are accessed and managed, from the menu bar by selecting View, Launch Palettes. The default installation of Enterprise Manager without value added or custom products provides only the Application palette.

You can activate the Enterprise Manager toolbar by choosing View, Toolbar from the menu bar. The toolbar consists of five sections of buttons for related tasks (see Figure 9.3). These tasks manage which application panes are visible, provide drag-and-drop help, manage map images, create and remove events, and create and remove jobs.

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