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Dataguard DB/LOG FILE NAME CONVERT has been set but files are created in a different directory (Doc ID 1348512.1)

Last updated on APRIL 06, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.2 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud 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
Information in this document applies to any platform.
***Checked for relevance on 02-Apr-2013***

Symptoms

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:

Database name :-  ORCL
Standby db_unique_name : STBY
Diskgroup :- +DATA_USERS
TABLESPACE : TESTME

 


Database files on standby environment are created on the wrong place despite the fact that both :
DB_FILE_NAME_CONVERT
and
LOG_FILE_NAME_CONVERT
are correctly set on the standby database

As an example on primary database we create a tablespace on ASM DG DATA_USERS:
CREATE TABLESPACE TESTME DATAFILE
'+DATA_USERS' SIZE 10M AUTOEXTEND ON NEXT 4096M MAXSIZE UNLIMITED
LOGGING ONLINE PERMANENT
EXTENT MANAGEMENT LOCAL AUTOALLOCATE
BLOCKSIZE 8K FLASHBACK ON;

This datafile is created :
+DATA_USERS/orcl/datafile/testme.282.754566507
As expected.

However on the standby with db file name convert in place:
SQL> select name,value from v$parameter where upper(name) like '%CONVER%';

NAME
--------------------------------------------------------------------------------
VALUE
--------------------------------------------------------------------------------
db_file_name_convert
+DATA_USERS/orcl, +DATA_USERS/stby

log_file_name_convert
+DATA_USERS/orcl, +DATA_USERS/stby

Oracle creates the datafile in this other directory :
+DATA_USERS/orcl_stby/datafile/testme.386.754566507

All other database files in standby are in the correct directory :
+DATA_USERS/stby

You would expect the database file to be created on the correct directory based on the db_file_name_convert settings :
+DATA_USERS/stby instead of +DATA_USERS/orcl_stby

Changes

Current standby settings :

standby_file_management AUTO
db_file_name_convert +DATA_USERS/orcl, +DATA_USERS/stby
log_file_name_convert +DATA_USERS/orcl, +DATA_USERS/stby
compatible 11.2.0.2.0
db_create_file_dest +DATA_USERS
db_name orcl
db_unique_name stby
dg_broker_start TRUE

Primary and standby database are using
Oracle Managed Files (OMF)
and
Oracle Automatic Storage Management (Oracle ASM).

standby_file_management is set to AUTO and the db_create_file_dest is set to +DATA_USERS.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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