some more questions regarding oracle suggested backup strategy

Hello everyone.

I try to find out the root couse of the problem related to oracle suggested backup strategy.

Here is the my rman configuration

RMAN> show all;

using target database control file instead of recovery catalog

RMAN configuration parameters for database with db_unique_name PAYMENT are:

CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS;

CONFIGURE BACKUP OPTIMIZATION OFF;

CONFIGURE DEFAULT DEVICE TYPE TO DISK;

CONFIGURE CONTROLFILE AUTOBACKUP ON;

CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '+fra/payment/controlfile/%F';

CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET;

CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1;