Data Guard Architecture In Oracle 10g Pdf Download, ask the passengers pdf download
f9488a8cf8 Log apply services automatically apply the redo data on the standby database to maintain consistency with the primary database. Maximum availabilityThis protection mode provides the highest level of data protection that is possible without compromising the availability of the primary database. Government customers are "commercial computer software" or "commercial technical data" pursuant to the applicable Federal Acquisition Regulation and agency-specific supplemental regulations. Using Data Guard, you can change the role of a database using either a switchover or a failover operation. 1.1 Data Guard Configurations A Data Guard configuration consists of one production database and one or more standby databases. 7 Apply Services. Automatic gap detection and resolution If connectivity is lost between the primary and one or more standby databases (for example, due to network problems), redo data being generated on the primary database cannot be sent to those standby databases. This is typically done for planned maintenance of the primary system. A standby database provides a safeguard against data corruption and user errors. Recovery Manager (RMAN) RMAN is an Oracle utility that simplifies backing up, restoring, and recovering database files.
Once created, Data Guard automatically maintains each standby database by transmitting redo data from the primary database and then applying the redo to the standby database. D.1 Configuring Standby Databases in an Oracle RAC Environment D.1.1 Setting Up a Multi-Instance Primary with a Single-Instance Standby D.1.2 Setting Up Oracle RAC Primary and Standby Databases D.1.2.1 Configuring an Oracle RAC Standby Database to Receive Redo Data D.1.2.2 Configuring an Oracle RAC Primary Database to Send Redo Data D.2 Configuration Considerations in an Oracle RAC Environment D.2.1 Format for Archived Redo Log Filenames D.2.2 Data Protection Modes D.2.3 Role Transitions D.2.3.1 Switchovers D.3 Troubleshooting D.3.1 Switchover Fails in an Oracle RAC Configuration . See Appendix D, "Data Guard and Real Application Clusters" and Oracle Database High Availability Overview for RAC and Data Guard integration. From the Enterprise Manager Central Console, all management operations can be performed locally or remotely. GOVERNMENT RIGHTS Programs, software, databases, and related documentation and technical data delivered to U.S. What's New in Oracle Data Guard?. RAC and Data Guard together provide the benefits of both system-level, site-level, and data-level protection, resulting in high levels of availability and disaster recovery without loss of data: RAC addresses system failures by providing rapid and automatic recovery from failures, such as node failures and instance crashes. It also allows read-only access to the data. 12 Using SQL Apply to Upgrade the Oracle Database. 14 Initialization Parameters.