Data Guard

Oracle Data Guard RedoRoutes : What is Priority 8 ?

By Mouhamadou Diaw When dealing with cascading or far sync in a Data Guard environment, it is important to understand how to configure the RedoRoutes property. By default, a primary database sends redo to each transport destination that is(…)

Some myths about PostgreSQL vs. Oracle

By Franck Pachot . I originally wrote this as a comment on the following post that you may find on internet: https://www.2ndquadrant.com/en/blog/oracle-to-postgresql-reasons-to-migrate/ but my comment was not published (many links in it… I(…)

Oracle 20c : Create a Far Sync Instance Is Now Easy

By Mouhamadou Diaw A far sync instance is like a standby instance as it can receive redo from the primary database and can ship that redo to other members of the Data Guard configuration. But unlike a physical standby instance,(…)

티베로 – The AWR-like “Tibero Performance Repository”

By Franck Pachot . In a previous post I introduced Tibero as The most compatible alternative to Oracle Database. Compatibility is one thing but one day you will want to compare the performance. I'll not do(…)

6 things Oracle could do for a better ODA

Introduction With the latest ODA X8 range, at least 80% of the customers could find an ODA configuration that fits their needs. For the others, either they can’t afford it, either they are already in the(…)

Oracle 20c Data Guard : Validating a Fast Start Failover Configuration

By Mouhamadou Diaw In Oracle 20c, we can now validate a Fast Start Failover configuration with the new command VALIDATE FAST_START FAILOVER. This command will help identifying issues in the configuration. I tested this new feature. The Fast Start(…)

Oracle 20c : The new PREPARE DATABASE FOR DATA GUARD

By Mouhamadou Diaw As you may know, Oracle 20c is in the cloud with new features. The one I have tested is the PREPARE DATABASE FOR DATA GUARD. This command configures a database for use as a primary database(…)

Dbvisit Standby 9 : Do you know the new snapshot feature?

By Mouhamadou Diaw Dbvisit snapshot option is a new feature available starting from version 9.0.06. I have tested this option and in this blog I am describing the tasks I have done. The configuration I am using is following(…)

Oracle 19C : Dynamic Change of Fast-Start Failover Target

By Mouhamadou Diaw Oracle 19C is now available on premise. There are lot of new features. One for the Data Guard Broker is that now we can dynamically change the fast-start failover target to a specified member in the list(…)

Recover a corrupted datafile in your DataGuard environment 11G/12C.

On a DG environment, a datafile needs to be recovered on the STANDBY site, in two situations : when is deleted or corrupted. Below, I will explain  how to recover a corrupted datafile, in order to be able to(…)