I hesitate to say this, but- tape infrastructure is unlikely to go anywhere anytime soon unless we find a better medium that last 30+ years. However, depending on your retention you would move your newest vicennial|yearly|monthly media to new standards as time goes on. it is rather expensive though.. So- I completely understand :) The other day I read an LTO 3! I think we are up to LTO 10 now haha. _last resort_: https://en.wikipedia.org/wiki/Disk_pack