Hi,
The problem is if you have all of these incremental/differential backups going to tape and not disk it will defeat the main purpose of having all the backups on disk in the sense that recovery times will increase as you will need to wait for all the relevant tapes to load before reading them.
What you could do instead is have the incremental/differential backups go to disk during the week and an Auxiliary copy of the incremental backups go to tape each night from disk then set the retention of the incrementals to a shorter time period so they do not stay on disk for more than a week. That way you can still have fast backups/restores of files and save space on your maglib. The comment from "honmapog" is the only option for sending incremental/differential backups to a different destination to your full backups. You will need to create new storage policies and migrate to them from your existing ones (as deleting a Storage Policy will prevent recovery of all data associated with them) which is no small feat and will be a risky task if you have limited knowledge of the product. I would also advise against doing any major changes i.e. changing the setup of your storage policies before an upgrade. All major changes like this should be left until after a successful upgrade.
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by: honmapogPosted on 2009-01-01 at 12:24:44ID: 23276151
Check if the use of an "Incremental Storage Policy" solves your problem. http://documentation.commv
The CommVault documentation does suggest doing the opposite of what you're trying to do (i.e. full to tape/incr to maglib), but you should be able to reverse that.