RMAN是一个很方便很好用的备份，恢复，还原的一个工具，做这个小测试其实只有一个RMAN语句就完全解决了这么大的需求：
RMAN> backup as backupset full database format '/u01/app/backup/db_%U.rmn' include current controlfile plus archivelog delete all input;
Starting backup at 10-OCT-16
current log archived
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=143 device type=DISK
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=11 RECID=6 STAMP=924895260
channel ORA_DISK_1: starting piece 1 at 10-OCT-16
channel ORA_DISK_1: finished piece 1 at 10-OCT-16
piece handle=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/0bri1i0t_1_1 tag=TAG20161010T192101 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
channel ORA_DISK_1: deleting archived log(s)
archived log file name=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_11_924890639.dbf RECID=6 STAMP=924895260
Finished backup at 10-OCT-16
Starting backup at 10-OCT-16
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00001 name=/u01/app/oracle/oradata/ORA11GR2/system01.dbf
input datafile file number=00002 name=/u01/app/oracle/oradata/ORA11GR2/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/ORA11GR2/example01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/ORA11GR2/undotbs01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/ORA11GR2/users01.dbf
channel ORA_DISK_1: starting piece 1 at 10-OCT-16
channel ORA_DISK_1: finished piece 1 at 10-OCT-16
piece handle=/u01/app/backup/db_0cri1i0v_1_1.rmn tag=TAG20161010T192103 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:05:42
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
including current control file in backup set
including current SPFILE in backup set
channel ORA_DISK_1: starting piece 1 at 10-OCT-16
channel ORA_DISK_1: finished piece 1 at 10-OCT-16
piece handle=/u01/app/backup/db_0dri1ibl_1_1.rmn tag=TAG20161010T192103 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 10-OCT-16
Starting backup at 10-OCT-16
current log archived
using channel ORA_DISK_1
channel ORA_DISK_1: starting archived log backup set
channel ORA_DISK_1: specifying archived log(s) in backup set
input archived log thread=1 sequence=12 RECID=7 STAMP=924895610
channel ORA_DISK_1: starting piece 1 at 10-OCT-16
channel ORA_DISK_1: finished piece 1 at 10-OCT-16
piece handle=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/0eri1ibq_1_1 tag=TAG20161010T192650 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
channel ORA_DISK_1: deleting archived log(s)
archived log file name=/u01/app/oracle/product/11.2.0/dbhome_1/dbs/arch1_12_924890639.dbf RECID=7 STAMP=924895610
Finished backup at 10-OCT-16
总结：
RMAN> backup as backupset full database format '/u01/app/backup/db_%U.rmn' include current controlfile plus archivelog delete all input;