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Oracle Enterprise Manager Interface

Which components make up the Oracle Enterprise Manager Interface in Oracle 13c?
Oracle Enterprise Manager (OEM) is a robust tool that allows database administrators (DBAs) to manage the Oracle environment through a single, integrated solution. Oracle Enterprise Manager 13c provides comprehensive, end-to-end management of the Oracle ecosystem, including performance monitoring, configuration management, and lifecycle management, among other features.
The Oracle Enterprise Manager 13c interface comprises various components:
  1. Oracle Enterprise Manager Cloud Control: This is the main component of OEM 13c. It provides a unified view of the entire IT infrastructure, including all Oracle databases, middleware, and hosts, from a single console. It allows you to monitor and manage the complete Oracle stack in an integrated fashion.
  2. Home Page: The Home Page is the landing interface once you log into OEM. It provides an overview of the system's status and hosts alerts, job statuses, and system utilization metrics. It's designed to provide a quick snapshot of the health of your database environment.
  3. Targets: In the OEM interface, a "target" refers to any entity you can manage or monitor, such as databases, hosts, middleware, or applications. The 'Targets' menu allows for navigation to specific target types like databases, hosts, or middleware.
  4. Performance Hub: The Performance Hub provides a holistic view of performance data in real-time and helps diagnose performance problems. It combines data from the Automatic Workload Repository (AWR), Active Session History (ASH), and Real-Time SQL Monitoring.
  5. Job System: The Job System is a powerful feature for scheduling routine administrative tasks such as backups or gathering statistics. It allows jobs to be run immediately or scheduled for a later date and time.
  6. Incident Manager: The Incident Manager component helps manage and resolve incidents and problems in your environment. It provides a consolidated view of all problems and incidents, along with an interface for notifying administrators and tracking resolution progress.
  7. Compliance Framework: The Compliance Framework helps organizations adhere to their operational and regulatory standards by assessing the compliance of their targets with built-in or custom rules and standards.
  8. Database Lifecycle Management: The Database Lifecycle Management feature provides a set of tools for provisioning, patching, cloning, and upgrading databases. It also provides configuration management and compliance capabilities.
  9. Cloud Management: For organizations leveraging Oracle's cloud solutions, OEM 13c provides a range of features to manage cloud services, set up cloud infrastructure, and migrate to the cloud.

Starting a Database Managed by Oracle Restart with Oracle Enterprise Manager

With Oracle Enterprise Manager Database Control (Database Control), you can use Oracle Restart to start a database. To start a database managed by Oracle Restart with Oracle Enterprise Manager:
  1. Access the Database Home page for the desired database instance. See "Accessing the Database Home Page" in Oracle Database 2 Day DBA for instructions.
  2. Click Startup. The Startup/Shutdown Credentials page appears.
  3. Enter credentials as follows: a. Enter the host computer credentials for the user who installed the database Oracle home. b. Enter the database credentials consisting of the user name SYS and the password that you assigned to SYS during the installation. c. In the Connect As list, choose the value SYSOPER.
  4. (Optional) Select the Save as Preferred Credential option if you want these credentials to be automatically filled in for you the next time that this page appears.
  5. Click OK. The Select Startup Type page appears.
  6. To start the database with Oracle Restart, select Start database along with dependent resources. This ensures that resources on which the database depends, such as the Oracle Automatic Storage Management instance, are successfully started before the database is started.
  7. Click OK. A confirmation page appears.
  8. Click Yes. The Startup/Shutdown: Activity Information page appears, indicating that the database is being started up. When startup is complete, the Login page appears.
  9. Log in to the database (and to Database Control). The Database Home page appears indicating that the database instance status is Up.

Oracle RMAN Backup and Recovery
Note: The following set of graphical descriptions apply to the legacy Oracle database Oracle 8i.

Oracle Enterprise Manager Interface