You're making this too complicated. Upload the video to youtube, then plug in your 16TB USB drive and copy the file there as well, then unplug the drive and pu

You're making this too complicated. Upload the video to youtube, then plug in your 16TB USB drive and copy the file there as well, then unplug the drive and put it back on the shelf. When you fill up one drive, you buy another, and the first one stays in the closet, forever. That's it. If youtube deletes your account, you take the drives out of the closet and re-upload. If a drive fails, you use youtube-dl to repopulate it. The only way this fails is if a drive dies / house fire on the same day that youtube deletes your account. If you are really that paranoid about it, keep a second copy of each drive at work / home. But you really, really don't need to.