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12c Dataguard Switchover Best Practices using DGMGRL(Dataguard Broker Command Prompt) (Doc ID 1582837.1)

Last updated on MARCH 21, 2024

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.
*** Reviewed for Relevance 16-Jul-2015 ***
*** Reviewed for Relevance 27-Oct-2016 ***


This Document offers Step by Step method to perform Switchover using Dataguard Broker command prompt DGMGRL.

NOTE: In the images and/or the document content below, the user information and environment data used represents fictitious data from the Oracle sample schema(s), Public Documentation delivered with an Oracle database product or other training material. Any similarity to actual environments, actual persons, living or dead, is purely coincidental and not intended in any manner.

For the purposes of this document, the following fictitious environment is used as an example to describe the procedure:

Dg configuration : 12c
Primary db_unique_name : boston
Standby db_unique_name : chicago



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In this Document
 I. Pre-Switchover Checks
 Verify Dataguard Broker Configuration
 Validate Database
 Disable Apply Delay
 Turn on Data Guard tracing on primary and standby
 for RAC instance,
 Tail Alert Logs and DRC (optional) on all instances
 Perform Switchover
 III. Post - Switchover Check
 Reset Delaymins property
 Set Trace to Prior Value
 Verify Broker Configuration      

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