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Minimal Downtime Cross Platform Migration and 12c Database Upgrade using Data Guard

This note describes the procedure used to perform a minimal downtime platform migration from Windows to Linux as well as a database upgrade from Oracle 11.2.0.4 to Oracle 12c (12.1.0.2). We create a Data Guard physical standby database using the DUPLICATE FROM ACTIVE DATABASE feature, followed by a switchover and then we activate the standby […]

Creating an Oracle 12c Data Guard Active Standby Database

This note examines how to create an Oracle 12.1.0 physical standby Active Data Guard database using the RMAN DUPLICATE FROM ACTIVE command. We will be creating the data guard configuration in a 12c Container Database. Remember – in 12c Data Guard is set up at the Container level and not the individual Pluggable database level […]

Oracle GoldenGate 11gR2 high availability with Oracle 11gR2 Clusterware

This note discusses how to achieve high availability in an Oracle 11g GoldenGate environment using Oracle 11gR2 Grid Infrastructure Clusterware services. The GoldenGate manager process has some configuration parameters which we can set to prevent outages like AUTOSTART and AUTORESTART which will ensure that GoldenGate Extract and Replicat processes will get restarted in the event […]

Oracle 11g Cross Platform Active Standby – Windows Primary database and Linux Active Standby

This note describes the procedure of configuring a cross platform using the 11g RMAN Active Duplicate as well as an Active Standby Database setup over a Windows and Linux platform. The Metalink note Data Guard Support for Heterogeneous Primary and Physical Standbys in Same Data Guard Configuration [ID 413484.1] describes the supported cross platform combinations […]

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