Hello Peter,
thank you for your post, thats exactly my point of view. Unfortunally, i didn´t got an answer to this toppic. Last time we were able to built new policies which used the other aggregate. But now we are in the situation, that we do not have the time to wait for rebuilding the backups because of limited space. So only a real "move" would help us or to buy a shelf only for reorganization. The last is not realy an option for us. But I´m in contact with our technical support. If there is a way and they will find it, I will let u know.
Regards
Felix