http://sn.1w6.org/file/bobjonkman-20160817T061227-2egdrcl.html

A #Backup story: I once administered a server for 16 independent offices, all backed up on the same tapes. A provincial law said that each office owned its own data, and when an office was replaced it could choose to destroy its data. That meant we had to destroy the backup tapes for all the offices when only one chose to destroy its data, leaving all the other offices vulnerable without backups. I was pricing the cost of a robot tape library so each office would have its own backup tape, but left that job before anything was purchased. I don't think my replacement ever followed up, so as far as I know they're still in the same predicament.