bcm@bcm-laptop:~/old$ oerr rman 6019
6019, 1, "could not translate tablespace name \"%s\""
// *Cause:  An error occurred while looking up the specified tablespace name
//          in the recovery catalog or target database control file.
// *Action: This error is accompanied by other errors describing the reason
//          for the failure.  Ensure that the tablespace is entered correctly.
//          If the tablespace was added recently, then a RESYNC CATALOG must
//          be done to update the recovery catalog.

RMAN> backup tablespace domain;

Starting backup at 28-DEC-11
using channel ORA_DISK_1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 12/28/2011 08:20:47
RMAN-20202: Tablespace not found in the recovery catalog
RMAN-06019: could not translate tablespace name "DOMAIN"

RMAN> sql 'create tablespace domain datafile size 1m';

sql statement: create tablespace domain datafile size 1m

RMAN> backup tablespace domain;

Starting backup at 28-DEC-11
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=00006 name=C:\APP\JOHN\ORADATA\ORCL\DATAFILE\O1_MF_DOMAIN_7HONC2CL_.DBF
channel ORA_DISK_1: starting piece 1 at 28-DEC-11
channel ORA_DISK_1: finished piece 1 at 28-DEC-11
piece handle=C:\APP\JOHN\FAST_RECOVERY_AREA\ORCL\BACKUPSET\2011_12_28\O1_MF_NNNDF_TAG20111228T082058_7HONCBW7_.BKP tag=TAG20111228T082058 comment=NONE

channel ORA_DISK_1: backup set complete, elapsed time: 00:00:02
Finished backup at 28-DEC-11

RMAN>