I expect some drives to fail within 5 years, but I have many that still have data from much longer ago. It would be a disconcertingly new phenomenon to find ev

I expect some drives to fail within 5 years, but I have many that still have data from much longer ago. It would be a disconcertingly new phenomenon to find every drive in some old archival NAS failed simultaneously, or every one In a collection of external drives, because all drives last exactly 5 years with little variation, even when switched off, due to helium loss.