I have two tapes that have files from a Files to Tape job that I want to archive (that is, take out of the loader and put them in long term storage.) I thought I needed to put them in a "Vault" but I can't figure out how to do so. When I right-click on either tape, the Move To Vault option is grayed out. Yes, I have a vault created. Am I missing something obvious, or am I not understanding the purpose of a "Vault"?