Oracle Enterprise Manager

Oracle Enterprise Manager (OEM or EM) is a set of web-based tools aimed at managing software and hardware produced by Oracle Corporation as well as by some non-Oracle entities.

Oracle Enterprise Manager includes three releases:

Oracle Enterprise Manager Database Control, the oldest and arguably the best-known release, aims to manage Oracle databases. It originated as a Java client able to configure and manage databases.

Oracle Application Server also has a web-interface to manage the application server.

For managing lots of databases and application servers (according to Oracle Corporation, preferably in a grid solution) one could use the Oracle Enterprise Manager Grid Control. It can manage multiple instances of Oracle deployment platforms; the most recent edition also allows for management and monitoring of other platforms such as Microsoft .NET, Microsoft SQL Server, NetApp filers, BEA Weblogic and others. Partners and IT organizations can build extensions to Oracle Enterprise Manager, and make them available to other Enterprise Manager users via on Oracle hosted web site called Oracle Enterprise Manager Extensibility Exchange.

System monitoring features include monitoring functionality that supports detection and notification of impending IT problems. It monitors Oracle Database instances, Oracle Real Application Clusters, and Oracle Application Server Farms and Clusters. OEM Grid Control comes with a set of performance and health metrics that allow monitoring of technology components such as applications, application servers, databases, as well as the back-end components on which they rely, such as hosts, operating systems and storage.

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