12c with CDB (多租户12c) :   

[oracle@nkgtsv2024rhl tmp]$ rman  target  /

Recovery Manager: Release 12.1.0.1.0 - Production on Tue Mar 18 14:43:53 2014
Copyright (c) 1982, 2013, Oracle and/or its affiliates.  All rights reserved.
connected to target database: TEST12C (DBID=1445636734)

RMAN> show all; 

using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name TEST12C 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      ---  11g及12c非租户情况下都是OFF
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      --- 11g版本没有此项  
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/data01/oracle12c/oracle/dbs/snapcf_test12c.f'; # default