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Showing and Modifying Default RMAN Configuration

 

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After connecting to target database using RMAN you can run show all to display the default RMAN configuration.

As you see Backup and recovery environment is preconfigured and the configuration is persistent across the restart 

Showing  Default RMAN Configuration

localhost:~/ [ORCL1P] rman target /

Recovery Manager: Release 18.0.0.0.0 - Production on Fri May 14 11:24:12 2021

Version 18.13.0.0.0

Copyright (c) 1982, 2018, Oracle and/or its affiliates.  All rights reserved.

connected to target database: ORCL1P (DBID=4215484517, not open)

RMAN> show all;

using target database control file instead of recovery catalog

RMAN configuration parameters for database with db_unique_name ORCL1P are:

CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default

CONFIGURE BACKUP OPTIMIZATION OFF; # default

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

CONFIGURE CONTROLFILE AUTOBACKUP ON; # default

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default

CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

CONFIGURE ENCRYPTION FOR DATABASE OFF; # default

CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default

CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default

CONFIGURE RMAN OUTPUT TO KEEP FOR 7 DAYS; # default

CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default

CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/product/18c/dbd2/dbs/snapcf_ORCL1P.f'; # default


Modifying Default RMAN Configuration


To  modify the RMAN configuration we need to use configuration command

For example 

If I want to modify the SNAPSHOT CONTROLFILE NAME I can run do it as below


RMAN> CONFIGURE SNAPSHOT CONTROLFILE NAME TO ' /u01/data1/snapcf_ORCL1P.f';

new RMAN configuration parameters:

CONFIGURE SNAPSHOT CONTROLFILE NAME TO ' /u01/data1/snapcf_ORCL1P.f';

new RMAN configuration parameters are successfully stored


Lets take another example to disable CONTROLFILE AUTOBACKUP


RMAN> CONFIGURE CONTROLFILE AUTOBACKUP OFF;


new RMAN configuration parameters:

CONFIGURE CONTROLFILE AUTOBACKUP OFF;

new RMAN configuration parameters are successfully stored


RMAN> show all;

RMAN configuration parameters for database with db_unique_name ORCL1P are:

CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default

CONFIGURE BACKUP OPTIMIZATION OFF; # default

CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default

CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default

CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default

CONFIGURE MAXSETSIZE TO UNLIMITED; # default

CONFIGURE ENCRYPTION FOR DATABASE OFF; # default

CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default

CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default

CONFIGURE RMAN OUTPUT TO KEEP FOR 7 DAYS; # default

CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default

CONFIGURE SNAPSHOT CONTROLFILE NAME TO ' /u01/data1/snapcf_ORCL1P.f';

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