Create standby DB using RMAN in Oracle10.2 standard ediction

Question

I am tring to create a standby DB in different host with different directory using RMAN. when I issued the command <duplicate target database for standby>, RMAN gave the error msg as follow:
Starting restore at 02-MAY-06
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: sid=78 devtype=DISK
creating datafile fno=1 name=/export/database/oracle/HTS1/system01.dbf
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of Duplicate Db command at 05/02/2006 11:24:28
RMAN-03015: error occurred in stored script Memory Script
RMAN-06136: ORACLE error from auxiliary database: ORA-01180: can not create datafile 1
ORA-01110: data file 1: '/export/database/oracle/HTS1/system01.dbf'
Path '/export/database/oracle/HTS1' exists in the standby host and permission are granted, some initial parameter for standby DB was set to:
db_file_name_convert='/export/home/oracle/oradata/HTS1','/export/database/oracle/HTS1'
log_file_name_convert='/export/home/oracle/oradata/HTS1','/export/database/oracle/HTS1'
db_create_file_dest='/export/database/oracle/HTS1'
Can anyone shed some light on the cause of this error? Thanks
Jackson

Answer 1

I found the reason. it was because of the the backup set not available.
But after I prepare the backup set at hte primary host, rman still gave err msg:
RMAN> duplicate target database for standby;
Starting Duplicate Db at 02-MAY-06
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: sid=78 devtype=DISK
contents of Memory Script:
restore clone standby controlfile;
sql clone 'alter database mount standby database';
executing Memory Script
Starting restore at 02-MAY-06
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backupset restore
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: reading from backup piece /export/home/oracle/flash_recovery_area/HTS1/backupset/2006_05_02/o1_mf_ncnnf_TAG20060502T131953_25ftztpo_.bkp
ORA-19870: error reading backup piece /export/home/oracle/flash_recovery_area/HTS1/backupset/2006_05_02/o1_mf_ncnnf_TAG20060502T131953_25ftztpo_.bkp
ORA-19505: failed to identify file "/export/home/oracle/flash_recovery_area/HTS1/backupset/2006_05_02/o1_mf_ncnnf_TAG20060502T131953_25ftztpo_.bkp"
ORA-27037: unable to obtain file status
SVR4 Error: 2: No such file or directory
Additional information: 3
failover to previous backup