Clone ASM database to Non-ASM

Question

Hello All,
I take a compressed backup of my ASM (apps) database with the following command
BACKUP AS COMPRESSED BACKUPSET INCREMENTAL LEVEL = 0 TAG = 'WEEKLY_DATABASE'
FORMAT '/backup/rman_weekly_%d_%T.%t_s%s_p%p' DATABASE;
I now need to clone this to an non-asm instance. When I try to restore the backup it creates the diskgroup path on the target instance for ex if the disk group is called DG1 it creates the patch '/u02/DG1/datafile/' and copies the files there with file names as 'o1_mf_apps_ts__65zyr174_.dbf'. It is not able to complete the restore as one of the datafiles cannot be restored as it keeps looking for the diskgroup path and errors out with
'Cannot restore +DG1/datafile/xxx.dbf' no ASM instance available, cannot connect to cluster manager.
Any pointers/help/steps would be appreciated.
Regards

Answer 1

You should rename files before restoring. Try something like the following (change paths/names with yours) :
run {
        allocate channel d1 type disk;
        set newname for datafile 1 to '/oradata/ORCL/system.dbf';
        set newname for datafile 2 to '/oradata/ORCL/undotbs1.dbf';
        set newname for datafile 3 to '/oradata/ORCL/sysaux.dbf';
        set newname for datafile 4 to '/oradata/ORCL/users.dbf';
        restore database;
        switch datafile all;
        release channel d1;
}