The video explains best practices and different failure scenarios for different observer placements. It also shows how to configure high availability for the observer.

Here’s the summary:

• Always try to put the observer(s) on an external site.
• If you don’t have any, put it where the primary database is, and have one ready on the secondary site after the role transition.
• Don’t put the observer together with the standby database!
• Configure multiple observers for high availability, and use the PreferredObserverHosts Data Guard member property to ensure you never run the observer where the standby database is.

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Ludovico

Principal Product Manager at Oracle

Ludovico is a member of the Oracle Database High Availability (HA), Scalability & Maximum Availability Architecture (MAA) Product Management team in Oracle. He focuses on Oracle Data Guard, Flashback technologies, and Cloud MAA.

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