while setting up dataguard ORA-00245: control file backup failed; target is likely on a local file system

RMAN> DUPLICATE TARGET DATABASE
2> FOR STANDBY
3> FROM ACTIVE DATABASE
4> DORECOVER
5> SPFILE
6> set audit_file_dest='/u01/app/oracle/admin/rac_stby/adump' 
7> SET db_unique_name='RAC_STBY' COMMENT 'Is standby'
8> SET LOG_ARCHIVE_DEST_2='SERVICE=RAC ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=RAC'
9> SET FAL_SERVER='RAC' COMMENT 'Is primary'
10> SET instance_number='1'
11> NOFILENAMECHECK;

Starting Duplicate Db at 19-DEC-14
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=1 device type=DISK

contents of Memory Script:
{
   backup as copy reuse
   targetfile  '/u01/app/oracle/product/11.0.2/db_1/dbs/orapwRAC2' auxiliary format 
 '/u01/app/oracle/product/11.0.2/db_1/dbs/orapwRAC_STBY1'   targetfile 
 '+DATA/rac/spfilerac.ora' auxiliary format 
 '/u01/app/oracle/product/11.0.2/db_1/dbs/spfileRAC_STBY1.ora'   ;
   sql clone "alter system set spfile= ''/u01/app/oracle/product/11.0.2/db_1/dbs/spfileRAC_STBY1.ora''";
}
executing Memory Script

Starting backup at 19-DEC-14
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=29 instance=RAC2 device type=DISK
Finished backup at 19-DEC-14

sql statement: alter system set spfile= ''/u01/app/oracle/product/11.0.2/db_1/dbs/spfileRAC_STBY1.ora''

contents of Memory Script:
{
   sql clone "alter system set  audit_file_dest = 
 ''/u01/app/oracle/admin/rac_stby/adump'' comment=
 '''' scope=spfile";
   sql clone "alter system set  db_unique_name = 
 ''RAC_STBY'' comment=
 ''Is standby'' scope=spfile";
   sql clone "alter system set  LOG_ARCHIVE_DEST_2 = 
 ''SERVICE=RAC ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=RAC'' comment=
 '''' scope=spfile";
   sql clone "alter system set  FAL_SERVER = 
 ''RAC'' comment=
 ''Is primary'' scope=spfile";
   sql clone "alter system set  instance_number = 
 1 comment=
 '''' scope=spfile";
   shutdown clone immediate;
   startup clone nomount;
}
executing Memory Script

sql statement: alter system set  audit_file_dest =  ''/u01/app/oracle/admin/rac_stby/adump'' comment= '''' scope=spfile

sql statement: alter system set  db_unique_name =  ''RAC_STBY'' comment= ''Is standby'' scope=spfile

sql statement: alter system set  LOG_ARCHIVE_DEST_2 =  ''SERVICE=RAC ASYNC VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE) DB_UNIQUE_NAME=RAC'' comment= '''' scope=spfile

sql statement: alter system set  FAL_SERVER =  ''RAC'' comment= ''Is primary'' scope=spfile

sql statement: alter system set  instance_number =  1 comment= '''' scope=spfile

Oracle instance shut down

connected to auxiliary database (not started)
Oracle instance started

Total System Global Area    1519898624 bytes

Fixed Size                     2253464 bytes
Variable Size                503319912 bytes
Database Buffers            1006632960 bytes
Redo Buffers                   7692288 bytes

contents of Memory Script:
{
   sql clone "alter system set  control_files = 
  ''+DATA/rac_stby/controlfile/current.266.866729111'' comment=
 ''Set by RMAN'' scope=spfile";
   backup as copy current controlfile for standby auxiliary format  '+DATA/rac_stby/controlfile/current.267.866729111';
   sql clone "alter system set  control_files = 
  ''+DATA/rac_stby/controlfile/current.267.866729111'' comment=
 ''Set by RMAN'' scope=spfile";
   shutdown clone immediate;
   startup clone nomount;
}
executing Memory Script

sql statement: alter system set  control_files =   ''+DATA/rac_stby/controlfile/current.266.866729111'' comment= ''Set by RMAN'' scope=spfile

Starting backup at 19-DEC-14
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile copy
copying standby control file
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 12/19/2014
RMAN-05501: aborting duplication of target database
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of backup command on ORA_DISK_1 channel at 12/19/2014
ORA-00245: control file backup failed; target is likely on a local file system

RMAN> 


********************************

Changed the location of SNAPSHOT CONTROLFILE in RMAN to fix this

RMAN> show all;

RMAN configuration parameters for database with db_unique_name RAC are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default
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 MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.0.2/db_1/dbs/snapcf_RAC2.f'; # default

RMAN> CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+FRA/snapcf_RAC2.f';

new RMAN configuration parameters:
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+FRA/snapcf_RAC2.f';
new RMAN configuration parameters are successfully stored

RMAN> show all;

RMAN configuration parameters for database with db_unique_name RAC are:
CONFIGURE RETENTION POLICY TO REDUNDANCY 1; # default
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP OFF; # default
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 MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '+FRA/snapcf_RAC2.f';

RMAN>