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Restore Failover → RMAN automatically uses restore failover to skip corrupted or inaccessible backups and look for … of failover that it is performing. For example, when RMAN fails over to another backup of the same … file, it generates a message similar to the following: failover to piece handle=/u01/backup/db_1 tag … : 2: No such file or directory
Enabling Clients for Fast Connection Failover → your services, you can enable clients for fast connection failover. The clients receive Fast … an Oracle Data Guard failover. See \"Automating the Failover of Connections Between Primary and … fast connection failover for the following types of clients in an Oracle Restart configuration … : Enabling Fast Connection
FAILOVER → Invokes a failover that transitions the named (target) standby database into the role of a primary … database. This type of failover is referred to as manual failover. See Section 5.4, \"Manual … Failover\" for more information. Note: Because a failover results in a transition of a standby database to
Failover → This event is triggered when an Oracle failover occurs. Declaration // C# public event … OracleFailoverEventHandler Failover; Event Data The event handler receives an OracleFailoverEventArgs object … the type of the failover. FailoverEvent Indicates the state of the failover. Remarks The Failover
Automating the Failover of Connections Between Primary and Standby Databases → switchover or failover. You can use Oracle Notification Services (ONS) to immediately notify clients of the … failover of services between the primary and standby databases. The Oracle Data Guard Broker uses … Fast Application Notification (FAN) to send notifications to clients when a failover occurs … . Integrated Oracle clients
restore failover → The automatic search by RMAN for usable backups in a restore operation if a corrupted or inaccessible backup is found.
Enabling Failover → To enable failover notifications, the option ORADB_ENLIST_FOR_CALLBACK must be passed into the call … to the OpenDatabase method. See Also: OpenDatabase Method Example: Failover Notification The … OO4O_FO_ERROR indicates that failover was unsuccessful, but the ' application can handle the and … retry failover
COMMIT Statement → Data Guard Concepts and Administration for information about ensuring no loss of data during a failover to a standby database
ENABLE FAST_START FAILOVER → the primary database, without requiring you to perform any manual steps to invoke the failover. See … Section 5.5.2, \"Enabling Fast-Start Failover\" for complete information. Format ENABLE FAST_START … FAILOVER; Command Parameters None. Usage Notes The prerequisites described in Section 5.5.1 must be … met before you issue this
Application Failover Notifications → Application failover notifications can be used in the event of the failure of one database instance … and failover to another instance. Because delay can occur during a failover, the application … developer may want to inform the user that a failover is in progress, and request that the user stand by
Transparent Application Failover → OCCI Transparent Application Failover (TAF) enables OCCI to be more robust in handling database … should be considered when including Transparent Application Failover in an application: Because of the … delays inherent to failover processing, the design of the application may include a notice to the … user that a failover
Using Fast Connection Failover → The Fast Connection Failover (FCF) feature is a Fast Application Notification (FAN) client
5.4 Manual Failover → manner. This is known as a manual failover. There may or may not be data loss depending upon whether your … . The word manual is used to contrast this type of failover with a fast-start failover (described in Section 5.5 ).
Using Transparent Application Failover → To enable TAF, the connect string has to be configured for failover and registered on Connection
Failover Callback Registration → For the failover callback to be used, it must be registered on the server context handle. This
DISABLE FAST_START FAILOVER → Disables fast-start failover and prevent s the observer from initiating a failover to the target … standby database. See Section 5.5.5, \"Disabling Fast-Start Failover\" for additional information … . Format DISABLE FAST_START FAILOVER [ FORCE ]; Command Parameters None. Usage Notes If the primary and … target
ENABLE FAST_START FAILOVER CONDITION → Specifies additional conditions for which a fast-start failover should be performed. Format ENABLE FAST_START FAILOVER CONDITION value. Command Parameters
SHOW FAST_START FAILOVER → Displays all fast-start failover related information. Format SHOW FAST_START FAILOVER; COMMAND … PARAMETERS None. Usage Notes The SHOW FAST_START FAILOVER command shows a summary of the fast-start … failover configuration. Command Example DGMGRL> SHOW FAST_START FAILOVER; Fast-Start Failover:
5.5 Fast-Start Failover → 5.5 Fast-Start F ailover Fast-start failover allows the broker to automatically fail over to a … previously chosen standby database in the event of loss of the primary database. Fast-start failover … requiring you to perform any manual steps to invoke the failover. Fast-start failover can be used only in … maximum