没有使用catalog时，rman中的所有配置信息都会记入在 控制文件中
控制文件中dump出来的信息：
***************************************************************************
RMAN CONFIGURATION RECORDS
***************************************************************************
(size = 1108, compat size = 1108, section max = 50, section in-use = 2,
last-recid= 4, old-recno = 0, last-recno = 0)
(extent = 1, blkno = 91, numrecs = 50)
CONTROLFILE AUTOBACKUP:ON recno=1
CHANNEL:DEVICE TYPE DISK FORMAT '/home/Oracle/backup/%U' recno=2
RMAN中配置的信息
RMAN> show all
2> ;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name MYNEWDB are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;
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 CHANNEL DEVICE TYPE DISK FORMAT '/home/oracle/backup/%U';
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
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