Step By Step Cloning Oracle Database Using RMAN

~`~` Step By Step Cloning Oracle Database 10g Using RMAN`~`~

Delete existing DataFile folder in oradata location.

SQL> shutdown abort; (target database)

Now login to RMAN and set DBID:

RMAN> set DBID 123456; (Get it from source database, by connecting RMAN.)

Now, if there is no database i.e. you have just installed the target database (software only), then check if the dump destination folders are created at dump destination.Ex. - /app/oracle/admin/ULTIMUS/bdump/.

Startup the database in no mount state :

SQL> startup nomount;

Restore pfile:

SQL> restore spfile to pfile '$ORACLE_HOME/dbs/initULTIMUS.ora' from 'BACKUP_DESTINATION/autobackup/2011_06_20/o1_mf_s_744258937_6pofdsx4_.bkp’;

(or copy pfile i.e. initULTIMUS.ora from live server then paste it to dbs folder, if the following command is not working).

Restart the database with new pfile:

SQL> startup force nomount pfile=' $ORACLE_HOME /dbs/initULTIMUS.ora'

Restore control file from backup:

SQL>restore controlfile from ' BACKUP_DESTINATION /autobackup/2011_02_28/o1_mf_s_744258937_6pofdsx4_.bkp'

(Note: if control file redundancy is used check whether the redundant folder exist or not. Ex. /datafile/oracle-backup/multiplexed.)

Mount the database:

SQL>Alter database mount

If necessary Copy the latest archivelog from live server to ‘ BACKUP_DESTINATION /archivelog/2010_06_20/’.

Restore the database using until time command:

SQL> restore database until time "to_date('20/06/2011:20:00:00','dd/mm/yyyy:hh24:mi:ss')"

Recover the database using until time command:

SQL> recover database until time "to_date('20/06/2011:20:00:00','dd/mm/yyyy:hh24:mi:ss')"

Open the database with resetlogs:

SQL> alter database open resetlogs

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Hope this will help you. Happy to help.
thanks for reading this article. good day.

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