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11g To 12c Upgrade, DGMGRL Create Configuration With Db_unique_name Results In ORA-16587 (Doc ID 2312935.1)

Last updated on AUGUST 04, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 to 12.2.0.1 [Release 11.2 to 12.2]
Information in this document applies to any platform.

Symptoms

When running dgmgrl sys/@megst1a_CF1:
DGMGRL for IBM/AIX RISC System/6000: Release 12.2.0.1.0 - Production on Tue Sep 26 18:06:18 2017

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Welcome to DGMGRL, type "help" for information.
Connected to "A_CF1"
Connected as SYSDBA.
DGMGRL> create configuration CF1 as primary database is A_CF1 connect identifier is megst1a_CF1;
Error: ORA-16587: ambiguous object specified to Data Guard broker

Cause

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