I starting a tech refresh for our TSM setup. I am looking to move to containers. I have done my homework, purchased the correct hardware and have laid out a plan. I read in IBM's best practices that if we backup to tape from stgpools that containers isn't the best option. So my question is should I go to containers if I need to have the tapes because of policy? If I understand everything correctly what gets backed up to tape is not the individual pieces of data but the stgpool extents? If I lose all my stgpools can I restore them from tape?