====== RMAN DUPLICATE ======

==== Environement ====

  oracle@oracle:/oracle/TWOTST/orahome # env| grep ORA
  ORACLE_SID=TWOTST
  ORA_NLS10=/oracle/TWOTST/orahome/nls/data
  ORACLE_BASE=/oracle/TWOTST
  ORACLE_SW=/oracle/product/19.16.0.0.0p1
  ORACLE_HOME=/oracle/TWOTST/orahome

  oracle@oracle:/oracle/DUPTST/orahome # env| grep ORA
  ORACLE_SID=DUPTST
  ORA_NLS10=/oracle/DUPTST/orahome/nls/data
  ORACLE_BASE=/oracle/DUPTST
  ORACLE_SW=/oracle/product/19.16.0.0.0p1
  ORACLE_HOME=/oracle/DUPTST/orahome

==== create pfile in auxiliary DUPTST from pfile in source database containing at least: ====


  instance_name=DUPTST
  db_name=DUPTST
  control_files="/oracle/data1/DUPTST/controlfile/control01.ctl"
  control_files="/oracle/data2/DUPTST/controlfile/control02.ctl"
 

==== Start the RMAN client: ====


  * CONNECT to the source database as TARGET 
  * CONNECT to the auxiliary instance
  * CONNECT to CATALOG

   RMAN> CONNECT TARGET SYS@TWOTST;    # source database
   connected to target database: PROD (DBID=1234567)

   RMAN> CONNECT AUXILIARY SYS@DUPTST; # duplicate database instance
   connected to auxiliary database: DUPDB (not mounted)

   RMAN> CONNECT CATALOG rman_owner@ONETST;    # recovery catalog database
   connected to recovery catalog database

Method one (filnames in script):

   run {
        ALLOCATE AUXILIARY CHANNEL c1 DEVICE TYPE disk;
        ALLOCATE AUXILIARY CHANNEL c2 DEVICE TYPE disk;
        SET NEWNAME FOR DATAFILE 1 /oracle/data4/TWOTST/datafile/system_001.dbf
        SET NEWNAME FOR DATAFILE 2 /oracle/data4/TWOTST/datafile/sysaux_001.dbf
        SET NEWNAME FOR DATAFILE 3 /oracle/data4/TWOTST/datafile/databyhora.dbf
        SET NEWNAME FOR DATAFILE 4 /oracle/data4/TWOTST/datafile/tools_001.dbf
        SET NEWNAME FOR DATAFILE 5 /oracle/data4/TWOTST/datafile/data_001.dbf
        SET NEWNAME FOR DATAFILE 6 /oracle/data4/TWOTST/datafile/undotwo_001.dbf
        SET NEWNAME FOR DATAFILE 7 /oracle/data4/TWOTST/datafile/data_002.dbf
        DUPLICATE TARGET DATABASE TO 'DUPDB'
        #SKIP TABLESPACE tools
        LOGFILE
                  GROUP 1 ('/oracle/data1/TWOTST/onlinelog/redo1_1.rdo',
			   '/oracle/data1/TWOTST/onlinelog/redo2_1.rdo',
			   '/oracle/data1/TWOTST/onlinelog/redo3_1.rdo',	  
                           '/oracle/data1/TWOTST/onlinelog/redo4_1.rdo') SIZE 200M REUSE, 
                  GROUP 2 ('/oracle/data2/TWOTST/onlinelog/redo2_1.rdo', 
			   '/oracle/data2/TWOTST/onlinelog/redo2_2.rdo',
			   '/oracle/data2/TWOTST/onlinelog/redo3_2.rdo',	  
                           '/oracle/data2/TWOTST/onlinelog/redo4_2.rdo') SIZE 200M REUSE, 
    } 	
    

Method two (filenames in initSID.ora via db_file_name_convert, log_file_name_convert: