试验：
SQL> oradebug setmypid;
Statement processed.
SQL>
接着，进行backup:
RMAN> list backup;
using target database control file instead of recovery catalog
specification does not match any backup in the repository
RMAN> backup database;
Starting backup at 02-APR-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=41 device type=DISK
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/orcl/system01.dbf
input datafile file number=00002 name=/u01/app/oracle/oradata/orcl/sysaux01.dbf
input datafile file number=00005 name=/u01/app/oracle/oradata/orcl/example01.dbf
input datafile file number=00003 name=/u01/app/oracle/oradata/orcl/undotbs01.dbf
input datafile file number=00004 name=/u01/app/oracle/oradata/orcl/users01.dbf
channel ORA_DISK_1: starting piece 1 at 02-APR-14
channel ORA_DISK_1: finished piece 1 at 02-APR-14
piece handle=/u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_nnndf_TAG20140402T164749_9mqmorj0_.bkp tag=TAG20140402T164749 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:02:17
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 02-APR-14
channel ORA_DISK_1: finished piece 1 at 02-APR-14
piece handle=/u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_ncsnf_TAG20140402T164749_9mqmt1w2_.bkp tag=TAG20140402T164749 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:03
Finished backup at 02-APR-14
RMAN> list backup;
List of Backup Sets
===================
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
1 Full 1.10G DISK 00:02:13 02-APR-14
BP Key: 1 Status: AVAILABLE Compressed: NO Tag: TAG20140402T164749
Piece Name: /u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_nnndf_TAG20140402T164749_9mqmorj0_.bkp
List of Datafiles in backup set 1
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- --------- ----
1 Full 1059075 02-APR-14 /u01/app/oracle/oradata/orcl/system01.dbf
2 Full 1059075 02-APR-14 /u01/app/oracle/oradata/orcl/sysaux01.dbf
3 Full 1059075 02-APR-14 /u01/app/oracle/oradata/orcl/undotbs01.dbf
4 Full 1059075 02-APR-14 /u01/app/oracle/oradata/orcl/users01.dbf
5 Full 1059075 02-APR-14 /u01/app/oracle/oradata/orcl/example01.dbf
BS Key Type LV Size Device Type Elapsed Time Completion Time
------- ---- -- ---------- ----------- ------------ ---------------
2 Full 9.36M DISK 00:00:05 02-APR-14
BP Key: 2 Status: AVAILABLE Compressed: NO Tag: TAG20140402T164749
Piece Name: /u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_ncsnf_TAG20140402T164749_9mqmt1w2_.bkp
SPFILE Included: Modification time: 02-APR-14
SPFILE db_unique_name: ORCL
Control File Included: Ckp SCN: 1059260 Ckp time: 02-APR-14
RMAN>
此时，看controlfile的dump：
SQL> oradebug dump controlf 4;
Statement processed.
SQL>
查看目录 下的 trc文件
[oracle@localhost trace]$ pwd
/u01/app/oracle/diag/rdbms/orcl/orcl/trace
[oracle@localhost trace]$
看到最新生成的文件名：orcl_ora_13835.trc
查看此文件内容，确实可以看到backup的metada 反映在其中。
Earliest record:
RECID #1 Recno 1 Record timestamp 04/02/14 16:47:52 piece #1 copy #1 pool 0
Backup set key: stamp=843842869, count=1
V$RMAN_STATUS: recid=140735352737336, stamp=140735352737328
Flags: <concurrent access>
Device: DISK
Handle: /u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_nnndf_TAG20140402T164749_9mqmorj0_.bkp
Media-Handle:
Comment:
Tag: TAG20140402T164749
Completion time 04/02/14 16:50:01
Latest record:
RECID #2 Recno 2 Record timestamp 04/02/14 16:50:09 piece #1 copy #1 pool 0
Backup set key: stamp=843843006, count=2
V$RMAN_STATUS: recid=140735352737336, stamp=140735352737328
Flags: <concurrent access>
Device: DISK
Handle: /u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_ncsnf_TAG20140402T164749_9mqmt1w2_.bkp
Media-Handle:
Comment:
Tag: TAG20140402T164749
Completion time 04/02/14 16:50:11
RECID #1 Recno 1 Record timestamp 04/02/14 16:47:52 piece #1 copy #1 pool 0
Backup set key: stamp=843842869, count=1
V$RMAN_STATUS: recid=140735352737336, stamp=140735352737328
Flags: <concurrent access>
Device: DISK
Handle: /u01/app/oracle/fast_recovery_area/ORCL/backupset/2014_04_02/o1_mf_nnndf_TAG20140402T164749_9mqmorj0_.bkp
Media-Handle:
Comment:
Tag: TAG20140402T164749
Completion time 04/02/14 16:50:01