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Before You Begin

Before you begin installing any of the components contained on the Oracle Enterprise Manager with Change Management, Diagnostics, and Tuning Packs CD-ROM, be sure to review this chapter. You will learn the basic concepts behind Oracle Enterprise Manager's three-tier architecture, the hardware and software requirements, and the components that are available for each installation.

IMPORTANT: The Oracle Change Management, Oracle Diagnostics, and Oracle Tuning Packs are separately licensable components. Contact your sales representative or visit the online Oracle Store (http://oraclestore.oracle.com) for more information on obtaining a license.

Oracle Enterprise Manager's Three-Tier Framework

Oracle Enterprise Manager architecture consists of a three-tier framework. Unlike a two-tier client-server structure, a three-tier architecture provides reliability, scalability, and fault tolerance for enterprise environments. Oracle Enterprise Manager tiers include:

• Console and Management Applications--First Tier

  The first tier maintains the graphical user interface management applications such as:

  • Enterprise Manager Console (GUI-based management application)

  • Administrative tools for all management tasks

  • Oracle Management Pack applications

• Oracle Management Server(s)--Second Tier

  The second tier processes system management tasks sent by the console. This tier provides centralized intelligence and distributed control between the console (first tier) and the managed nodes (third tier). Specifically, the second tier maintains:

  • One or more Oracle Management Servers

  • A repository that stores system data, application data, information about the state of the managed nodes, and information about any system management packs

    Note: Even if you install more than one Oracle Management Server in the middle tier, you will only need one repository. The Management Servers can share the information from one repository to provide reliability and fault tolerance.

• Managed nodes containing databases and other services--Third Tier

  A managed node is any machine on your network that has a database and other services that you want to administer. Specifically a managed node can have:

  • Databases

  • Services (such as the Oracle Intelligent Agent and data collection service)

The flexibility of a three-tier architecture enables you to install the tiers on the same machine or on separate machines--whatever makes sense for your environment. Keep in mind, however, that it is important to install the Oracle Management Server (middle tier) on a node that will be stable.

For more information on the Oracle Enterprise Manager three-tier framework, see the Oracle Enterprise Manager Concepts Guide.

Hardware and Software Requirements

Review the Hardware and Software Requirements table before you begin installing the Oracle Enterprise Manager and Management Pack applications.

Table 1-1 System Requirements for the Oracle Enterprise Manager and Management Packs

Requirement	Oracle Enterprise Manager Client and Oracle Management Packs	Management Server	Oracle Enterprise Manager Client, Oracle Management Packs, and Management Server
Operating System1	Windows NT 4.0, Windows 95, Windows 98	Windows NT 4.0, Solaris 2.6 and 2.7	Windows NT 4.0, Windows 95, Windows 98 (Windows NT 4.0 or Solaris required for Management Server)
Windows NT 4.0 Service Pack	Service Pack 4.0 or above	Service Pack 4.0 or above	Service Pack 4.0 or above
Recommended Processor	Pentium 266	Pentium II 300	Pentium II 400
RAM	64 MB minimum 128 MB recommended	128 MB	128 MB
Hard Disk	228 MB	150 MB	250 MB

1 The Oracle Enterprise Manager console can also be installed on a Solaris 2.6 or 2.7 machine.

Note: The requirements outlined above assume a database repository for Oracle Enterprise Manager already exists. If a database has not been installed, you must install one. For recommended system and hardware requirements for an Oracle database, refer to the installation guide provided with your database release.

Installable Components

The table below lists all of the components that are available from this CD-ROM. For information about which components are installed based on your installation selection, see Selecting Top-Level Components to Install.

Component	Version
Oracle Enterprise Manager, includes three main components:	2.1.0.1.0
Oracle Enterprise Manager Client includes:	2.1.0.1.0
Oracle Enterprise Manager Console	2.1.0.1.0
Oracle DBA Management Pack, includes:	2.1.0.1.0
Oracle DBA Studio	2.1.0.1.0
Oracle Instance Manager	2.1.0.1.0
Oracle Schema Manager	2.1.0.1.0
Oracle Security Manager	2.1.0.1.0
Oracle Storage Manager	2.1.0.1.0
SQL *Plus Worksheet	2.1.0.1.0
Oracle Enterprise Manager Integrated Applications, includes:	2.1.0.0.0
Oracle Parallel Server Manager	2.1.0.0.0
Oracle interMedia Text Manager	2.1.0.0.0
Oracle Replication Manager	2.1.0.0.0
Oracle Applications Manager	2.1.0.0.0
Oracle Applications Server Manager	2.1.0.0.0
Oracle Developer Server Forms Manager	2.1.0.0.0
Oracle Spatial Index Advisor	2.1.0.0.0(Beta)
Oracle Directory Manager	2.0.4.0.0
Oracle Enterprise Security Manager	2.0.0.0.0
Oracle Enterprise Manager Quick Tours, includes:	2.1.0.0.0
Oracle Enterprise Manager Quick Tour	2.1.0.0.0
Oracle DBA Management Pack Quick Tour	2.1.0.0.0
Oracle Change Management Pack Quick Tour	2.1.0.0.0
Oracle Diagnostics Pack Quick Tour	2.1.0.0.0
Oracle Tuning Pack Quick Tour	2.1.0.0.0
Oracle Management Pack for Oracle Applications Quick Tour	2.1.0.0.0
Oracle Management Pack for SAP R/3 Quick Tour	2.1.0.0.0
Oracle Standard Management Pack Quick Tour	2.1.0.0.0
Oracle Intelligent Agent, includes:	8.1.6.0.0
Paging Service Agent Extensions1	8.1.6.0.0
Oracle Management Server, includes:	2.1.0.1.0
Oracle Enterprise Manager Configuration Assistant	2.1.0.1.0
Oracle Enterprise Manager Migration Assistant	2.1.0.1.0
Java Runtime Environment	1.1.7.24
Net8 Client, includes:	8.1.6.0.0
Net8 Assistant	8.1.6.0.0
Net8 Configuration Assistant	8.1.6.0.0
Oracle Universal Installer (OUI)	1.7.0.19.0
Oracle Enterprise Manager Web Site2	2.1.0.0.0
*Oracle Change Management Pack, includes3:	2.1.0.0.0
Baseline Viewer	2.1.0.0.0
Change Manager	2.1.0.0.0
DB Alter	2.1.0.0.0
DB Capture	2.1.0.0.0
DB Diff	2.1.0.0.0
DB Propagate	2.1.0.0.0
DB Quick Change	2.1.0.0.0
DB Search	2.1.0.0.0
Plan Editor	2.1.0.0.0
Oracle Change Management Pack Documentation	2.1.0.0.0
*Oracle Diagnostics Pack, includes:	2.1.0.0.0
Oracle Advanced Events	2.1.0.0.0
Oracle Capacity Planner	2.1.0.0.0
Oracle Performance Manager	2.1.0.0.0
Oracle TopSessions	2.1.0.0.0
Oracle Trace Manager	2.1.0.0.0
Oracle Trace Data Viewer	2.1.0.0.0
SQL Server Monitoring Option	2.1.0.0.0
Oracle Diagnostics Pack Documentation	2.1.0.0.0
*Oracle Tuning Pack, includes:	2.1.0.0.0
Oracle Expert	2.1.0.0.0
Oracle Index Tuning Wizard	2.1.0.0.0
Oracle SQL Analyze	2.1.0.0.0
Oracle Tablespace Map	2.1.0.0.0
Reorg Wizard	2.1.0.0.0
Oracle Tuning Pack Documentation	2.1.0.0.0

1 To use Oracle Enterprise Manager's paging functionality, install the Paging Service Agent Extensions in an Oracle Intelligent Agent Release 8.1.6 Oracle Home. Installing these extensions in any other Oracle Home is not supported. 2 The Oracle Enterprise Manager Web Site can only be installed from a Custom Installation. The web site enables you to launch the Oracle Enterprise Manager console in a browser. Management Packs are not browser-enabled. 3 IMPORTANT: The Oracle Management Packs marked with an '*' are sold separately and require individual licenses.

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