Configuring Oracle Restart

To configure Oracle Restart, you can add components, remove components, or modify options for components.

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• About Configuring Oracle Restart
  If you install Oracle Restart by installing the Oracle Grid Infrastructure for Standalone Servers and then create your database, the database is automatically added to the Oracle Restart configuration, and is then automatically restarted when required. However, if you install Oracle Restart on a host computer on which a database already exists, you must manually add the database, the listener, the Oracle Automatic Storage Management (Oracle ASM) instance, and possibly other components to the Oracle Restart configuration.
• Preparing to Run SRVCTL
  Many Oracle Restart tasks require that you run the SRVCTL utility. You must ensure that you run SRVCTL from the correct Oracle home, and that you log in to the host computer with the correct user account.
• Obtaining Help for SRVCTL
  Online help is available for the SRVCTL utility.
• Adding Components to the Oracle Restart Configuration
  In most cases, creating an Oracle component on a host that is running Oracle Restart automatically adds the component to the Oracle Restart configuration. However, in some cases, you must add components manually.
• Removing Components from the Oracle Restart Configuration
  When you use an Oracle-recommended method to delete an Oracle component, the component is also automatically removed from the Oracle Restart configuration.

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• Disabling and Enabling Oracle Restart Management for a Component
  You can temporarily disable Oracle Restart management for a component. One reason to do this is when you are performing maintenance on the component. For example, if a component must be repaired, then you might not want it to be automatically restarted if it fails or if the host computer is restarted. When maintenance is complete, you can reenable management for the component.
• Viewing Component Status
  You can use SRVCTL to view the running status (running or not running) for any component managed by Oracle Restart. For some components, additional information is also displayed.
• Viewing the Oracle Restart Configuration for a Component
  You can use SRVCTL to view the Oracle Restart configuration for any component. Oracle Restart maintains different configuration information for each component type. In one form of the SRVCTL command, you can obtain a list of components managed by Oracle Restart.
• Modifying the Oracle Restart Configuration for a Component
  You can use SRVCTL to modify the Oracle Restart configuration of a component. For example, you can modify the port number that a listener listens on when Oracle Restart starts it, or the server parameter file (SPFILE) that Oracle Restart points to when it starts a database.
• Managing Environment Variables in the Oracle Restart Configuration
  The Oracle Restart configuration can store name/value pairs for environment variables.

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• Creating and Deleting Database Services with SRVCTL
  When managing a database with Oracle Restart, Oracle recommends that you use SRVCTL to create and delete database services. When you use SRVCTL to add a database service, the service is automatically added to the Oracle Restart configuration and a dependency between the service and the database is established. Thus, if you start the service, Oracle Restart first starts the database if it is not started.
• Enabling FAN Events in an Oracle Restart Environment
  To enable Oracle Restart to publish Fast Application Notification (FAN) events, you must create an Oracle Notification Services (ONS) network that includes the Oracle Restart servers and the integrated clients.
• Automating the Failover of Connections Between Primary and Standby Databases
  In a configuration that uses Oracle Restart and Oracle Data Guard primary and standby databases, the database services fail over automatically from the primary to the standby during either a switchover or failover.
• Enabling Clients for Fast Connection Failover
  Fast Connection Failover provides high availability to Fast Application Notification (FAN) integrated clients, such as clients that use JDBC, OCI, or ODP.NET. If you configure the client to use fast connection failover, then the client automatically subscribes to FAN events and can react to database UP and DOWN events. In response, Oracle Database gives the client a connection to an active instance that provides the requested database service.

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