Please review my backup plan and give me any instruction

Question

Hi every one.
I set up a database and plant a backup strategy with RMAN that is:
- Backup incremental level 0 on every Sunday
- Backup incremental level 1 on other days.
My database is Oracle Enterprise 11gR2 - Linux amd64
The backup task scheduled with crontab on Linux CentOS 5.3. My RMAN commands are bellow. Please help me to review and show any risks may happen with my strategy.
The Incremental Level 0 RMAN:
RUN {
        allocate channel bkp device type disk;
        backup as compressed backupset incremental level 0 tag 'DB_BKP_FULL' database include current controlfile;
        backup as compressed backupset tag 'ARCL_BKP_FULL' archivelog all delete input;
        crosscheck archivelog all;
        crosscheck backup;
        delete noprompt obsolete;
        release channel bkp;
}The incremental level 1 RMAN:
RUN {
allocate channel bkp device type disk;
backup as compressed backupset incremental level 1 tag 'DB_BKP_FULL' database include current controlfile;
backup as compressed backupset tag 'ARCL_BKP_INCR' archivelog all delete input;
crosscheck archivelog all;
crosscheck backup;
delete noprompt obsolete;
release channel bkp;
}And this is my RMAN repository configuration:
RMAN> show all;
RMAN configuration parameters for database with db_unique_name OFM are:
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 3 DAYS;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE DEFAULT DEVICE TYPE TO DISK; # default
CONFIGURE CONTROLFILE AUTOBACKUP ON;
CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '%F_myautobackup_ctrlfile';
CONFIGURE DEVICE TYPE DISK PARALLELISM 1 BACKUP TYPE TO BACKUPSET; # default
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE ARCHIVELOG BACKUP COPIES FOR DEVICE TYPE DISK TO 1; # default
CONFIGURE MAXSETSIZE TO UNLIMITED; # default
CONFIGURE ENCRYPTION FOR DATABASE OFF; # default
CONFIGURE ENCRYPTION ALGORITHM 'AES128'; # default
CONFIGURE COMPRESSION ALGORITHM 'BASIC' AS OF RELEASE 'DEFAULT' OPTIMIZE FOR LOAD TRUE ; # default
CONFIGURE ARCHIVELOG DELETION POLICY TO NONE; # default
CONFIGURE SNAPSHOT CONTROLFILE NAME TO '/u01/app/oracle/product/11.2.0/db_1/dbs/snapcf_ofm.f'; # defaultAny suggestion is appreciated.
Regards
Edited by: Cuong Pham on Dec 13, 2012 11:13 AM
Edited by: Cuong Pham on Dec 13, 2012 11:15 AM

Answer 1

It might be similiar to the way Amazon does it - if you set the eBook price higher at one store than every other store, that store has the right to lower the price and collect the lower price for it (price matching).
So you sell your book at Amazon, Barnes and Noble, and Apple.
At Amazon it's $5.
At Barnes and Noble it's $5.
At Apple it's $10.
Apple has the right to lower the price to $5 and collect the commission on $5 and only remit you your commission on the $5.
That's my GUESS. I don't actually know, I just know what's how Amazon does it.