Rigorous backup processes...
Late last millennium, the establishment I was working for was transitioning to ISO9001; and outsourced the generation of their operating procedures to a third-party, as is the way with such places. Clearly, the third-party was paid by the kilo, as we received and had to dually implement and adhere to bookcases of glossy manuals.
Of course, there were reams of procedures ensuring that all our data was rigorously backed up to removable media; which could be archived safely off-site.
However, when the need arose, we discovered that there were no procedures outlined to ever get any of this data back...