Nothng ofdicial, sorry, wish I did!

Mostly personal experience. But that experience is also shared among a group of peers and friends in the SMB space where their clients think they can keep stuff on externals in an office safe only to find they’ve gone tits up nearly every time the pull them out a couple years later.

In the enterprise you’d get laughed out of a datacenter for even suggesting cold drives for anything. Of course that’s based around simple bit rot concerns, and why file systems like ZFS use a methodology to test/verify bits on a regular basis.