Duplicating a db to another host via rman

Question

I found a few documents on this topic, but didn't resolve my issue.
I am trying to restore an RMAN backup to a different host
(with same instance name, different path) from where the backup was taken.
And while running it gives the following error:
ORA-19505: failed to identify file "D:\ORACLE\BACKUP\TRACKER_20050920_FULL.S148P1"
ORA-27041: unable to open file
ORA-04002 unable to open file
O/S-Error : (OS 21) device not ready
Here D: drive is where I backup via rman ervery day.
If any of you had come across this problem and had a solution to this, could you please share it with me.
Thanks
P.S. I'm able to connect to catalog, target and auxiliary.
Charlie

Answer 1

run on host B：
step 1. create auxiliary instance and connect to auxiliary instance in nomount mode
        SQL> connect sys/syspw@aux as sysdba
        Connected to an idle instance.
        SQL>startup nomount pfile='C:\oracle\admin\tracker\scripts\initauxdb.ora'
run on host A：
step 2. RMAN> connect catalog rman/rmanpw@rman
        RMAN> connect target sys/syspw@target
        RMAN> connect auxiliary sys/syspw@aux
step 3. RMAN> run
        RMAN> {
        RMAN>    ALLOCATE AUXILIARY CHANNEL aux1 DEVICE TYPE DISK;
        RMAN>    DUPLICATE TARGET DATABASE TO "auxdb"
        RMAN>    PFILE='D:\oracle\admin\tracker\scripts\initauxdb.ora';
        RMAN> }
        ORA-19505: failed to identify file "D:\ORACLE\BACKUP\TRACKER_20050920_FULL.S148P1"
        ORA-27041: unable to open file
        ORA-04002: unable to open file
        O/S-Error: (OS 21) device not readyAfter made whole backup of primary db to drive C on host A,
and redo step 2 and step 3.
The error messages as the same as step 3.
There's my backup script：
RMAN>run
RMAN>{
RMAN>  shutdown immediate;
RMAN>  startup mount;
RMAN>  ALLOCATE CHANNEL bck2disk1 DEVICE TYPE DISK;
RMAN>  BACKUP DATABASE FORMAT 'C:\oracle\backup\%d_%T_Full.S%sP%p';
RMAN>  sql "alter database open";
RMAN>  Release Channel bck2disk1;
RMAN>}Thanks a lot
Charlie