New at rman backup

Question

Dear experts!
We always did our db backups with scripts (offline and online). Now we want to use RMAN. I have read a few tutorials over the web.
RUN
configure default device type to disk;
configure channel device type disk format = "M:\rmanbackup\%d_%s_%T";
configure controlfile autobackup on;
configure controlfile autobackup format for device type disk to 'M:\rmanbackup\%F.ctl';
configure maxsetsize to 1900M;
backup database plus archivelog;
backup archivelog all delete input;
DELETE BACKUP COMPLETED BEFORE 'SYSDATE-14' DEVICE TYPE DISK;
After two weeks the backup is obsolet. What do you think about my rman script? Are there any weak points or is it ok for first. I'll call the script once a week and do a full database export every day.
Thanks
Markus

Answer 1

I would recommend running the configure commands once and then removing them from you weekly script.
Might also help to configure a retention period instead of doing a delete based on a set time.
configure retention policy to recovery window of 14 days;Then add:
delete noprompt force obsolete;Depending on how many archive log locations you have, you may also want to change the archive log backup command to:
backup database plus archivelog delete all input;and remove the "backup archivelog all delete input" command.
May also help to get a text file backup of your spfile and control file (not mandatory, but you never know when it will come in handy).
Therefore, you could run all the configure commands below once:
configure default device type to disk;
configure channel device type disk format = "M:\rmanbackup\%d_%s_%T";
configure controlfile autobackup on;
configure controlfile autobackup format for device type disk to 'M:\rmanbackup\%F.ctl';
configure maxsetsize to 1900M;
configure retention policy to recovery window of 14 days;Then change your RUN command to:
RUN
backup database plus archivelog delete all input;
sql "alter database backup controlfile to trace as ''M:\rmanbackup\controlORCL9.txt''";
sql "create pfile=''M:\rmanbackup\initORCL9.ora'' from spfile";
delete noprompt force obsolete;
}You could run this and see if this works for you.