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Unable To Recreate Data Guard Fast Start Failover Configuration With DGMGRL (Doc ID 454418.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 12.1]
Information in this document applies to any platform.
***Checked for relevance on 21-Sep-2012***
*** Reviewed for Relevance 16-Jul-2015 ***


-- Problem Statement:
On 10.2.0.x in Production:

When attempting to recreate a Data Guard Broker Configuration the following Error occurs when attempting
to edit the Configuration Property LogXptMode in the Primary Site :


DGMGRL> edit database "ORCL1" set property LogXptMode='SYNC';

Error: ORA-16654: Fast-Start Failover is enabled.

-- Steps To Reproduce:
This Issue can be reproduced at will with the following Steps:

Remove the Data Guard Broker Configuration while Fast Start Failover is enabled.

1. Set up a Fast Start Failover Configuration and ensure FS_FAILOVER_STATUS is SYNCHRONIZED.

2. Place the Standby Database into READ ONLY Mode and shutdown the Standby Listener.

3. Perform a DML load on the Primary until FS_FAILOVER_STATUS becomes UNSYNCHRONIZED

4. Once the UNSYNCHRONISED State can be seen in the Primary site, kill the DMON-Process and remove the DG Broker Configuration Files.

5. DMON will restart but the FS_FAILOVER_STATUS will remain UNSYNCHRONISED.

6. At this Point the Creation of a new Data Guard Broker Configuration fails when attempting to edit the
configuration Property LogXptMode and set it to SYNC.

-- Business Impact:
The Issue has the following Business Impact:

Due to this Issue, the Data Guard Broker Configuration cannot be re-enabled and the Standby Database is
no longer protected by the Data Guard Broker and the Observer. So Fast-Start Failover is not possible at this Stage.


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