In principle, deleting archived data is the opposite of backing up. It is not clear what problem with existing backup strategies this solves. I mean you can u

In principle, deleting archived data is the opposite of backing up. It is not clear what problem with existing backup strategies this solves. I mean you can use a traditional delta backup tool and make one full copy of the current data separately with less chance for errors. It seems too clever by half and it is not clear to me from the question what problem it solves. Good luck.