Rman backups delete

Question

What commands would I use to do the following:
Daily I take a full compressed backup. I currently use:
backup as compressed backupset database;
And backup my archivelogs. I currently use:
backup archivelog all;
Then I want to keep 2 days of backup and archivelogs on disk and maybe 7 days of backup and backed up archivelogs on tape. How do I accomplish this part?

Answer 1

For what you are doing I like to utilize a storage manager product with my tape system where the files on disk are brought to tape automatically and stub files left in place where the files appear to be in the directory but are really on tape. This way I can just manage RMAN backup pieces and execute dsik based backups normally but manage my disk space better, manage RMAN as normal because as for as RMAN is concerned the files are there on disk. Tivoli Storage Manager (TSM) has a product that does this called HSM, other vendors have Hierarchical Storage Management (HSM) products as well. They are usually pretty inexpensive and remove complication related to managing the backup pieces between disk and tape with RMAN. You get the best of both worlds without having to manage anything differently then just disk based backups and you can use less storage.