Database Software

RMAN> show all;

RMAN configuration parameters are:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;
CONFIGURE BACKUP OPTIMIZATION OFF; # default
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F'; # default
CONFIGURE DEVICE TYPE DISK PARALLELISM 2;
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE CHANNEL 1 DEVICE TYPE DISK FORMAT '/cdrs/rman/back_%p%d.%s' CONNECT 'SYS/pass@bosst1';
CONFIGURE CHANNEL 2 DEVICE TYPE DISK FORMAT '/cdrs/rman/back_%p%d.%s' CONNECT 'SYS/pass@bosst2';
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/opt/oracle/app/oracle/product/9.2/dbs/snapcf_bosst.cf';

RMAN>
RMAN> backup database;
........
input datafile fno=00038 name=/dev/rvg01_lv032
input datafile fno=00041 name=/dev/rvg01_lv035
input datafile fno=00044 name=/dev/rvg01_lv038
input datafile fno=00047 name=/dev/rvg01_lv041
channel ORA_DISK_2: starting piece 1 at 20-MAY-07
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of backup command on ORA_DISK_2 channel at 05/20/2007 10:06:52
ORA-19504: failed to create file "/cdrs/rman/back_1BOSST.13"
ORA-27040: skgfrcre: create error, unable to create file
IBM AIX RISC System/6000 Error: 2: No such file or directory

RMAN>

$ touch /cdrs/rman/back_1BOSST.13
$ ls -l /cdrs/rman
total 0
-rwxr-xr-x 1 oracle dba 0 May 20 09:47 abc
-rw-r--r-- 1 oracle dba 0 May 20 10:50 back_1BOSST.13
$

OS : AIX 5.2 with HACMP cluster
DB: 9.2.0.7

I executed the "Backup database " command on BOSST1.

Would you please tell me where is the problem?

Regards
Faruque