I know that snapshots are incremental, but what I don't understand is what happens when you delete a snapshot? I assume that deleting an earlier snapshot will remove all indexes that have not been modified since it was taken from the backup??
My normal method of dealing with file backup is to maintain a daily, monthly, and yearly series. When you do a (successful) monthly you the restart the daily one, likewise for the year.
This cuts down the amount of work restoring in the case of disaster.
So I should have 3 repositories daily, monthly and yearly?