1. Check the datafile copies default setting
Recovery Manager: Release 11.2.0.4.0 - Production on Tue May 13 14:28:04 2014
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
connected to target database: CVRMAN (DBID=*********, open)
RMAN> show datafile backup copies;
using target database control file instead of recovery catalog
RMAN configuration parameters for database with db_unique_name CVRMAN are:
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
2.Run the command within the run block
RMAN> run
2> {
3> backup
4> copies 2 #create duplex copies
5> format '+DATA','/SHARED/backup1/%U' # location for backup pieces
6> datafile 2;
7> }
Starting backup at 13-MAY-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=31 device type=DISK
channel ORA_DISK_1: starting compressed full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00002 name=+DATA/cvrman/datafile/sysaux.257.847354793
channel ORA_DISK_1: starting piece 1 at 13-MAY-14
channel ORA_DISK_1: finished piece 1 at 13-MAY-14 with 2 copies and tag TAG20140513T143111
piece handle=+DATA/cvrman/backupset/2014_05_13/nnndf0_tag20140513t143111_0.303.847463473 comment=NONE
piece handle=/SHARED/backup1/1lp86h1f_1_2 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:01:36
Finished backup at 13-MAY-14
3) Check the duplex backup pieces created for the datafile 2
RMAN> list backup of datafile 2
2> tag="TAG20140513T143111";
List of Backup Sets
===================
BS Key Type LV Size
------- ---- -- ----------
40 Full 71.81M
List of Datafiles in backup set 40
File LV Type Ckp SCN Ckp Time Name
---- -- ---- ---------- --------- ----
2 Full 1039635 13-MAY-14 +DATA/cvrman/datafile/sysaux.257.847354793
Backup Set Copy #1 of backup set 40
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:01:30 13-MAY-14 YES TAG20140513T143111
List of Backup Pieces for backup set 40 Copy #1
BP Key Pc# Status Piece Name
------- --- ----------- ----------
48 1 AVAILABLE +DATA/cvrman/backupset/2014_05_13/nnndf0_tag20140513t143111_0.303.847463473
Backup Set Copy #2 of backup set 40
Device Type Elapsed Time Completion Time Compressed Tag
----------- ------------ --------------- ---------- ---
DISK 00:01:30 13-MAY-14 YES TAG20140513T143111
List of Backup Pieces for backup set 40 Copy #2
BP Key Pc# Status Piece Name
------- --- ----------- ----------
49 1 AVAILABLE /SHARED/backup1/1lp86h1f_1_2
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