Yes we have, if the array is installed in your backup corporate PKI server, in a shielded and locked cage with video, electrostatic, and laser monitoring and alarms. And the keys to the cage are in another state. And it requires EVP approval to deliver the keys to the authorized tech for a flight to the DR site to change a failed drive.
A real world example. You would recognize the name of this corporation in the first three letters. They take their corporate security very seriously, so much so that bumping into the cage earned you a visit from armed security, an escort out, and full debriefing until they were satisfied you would never take the cart with the stuck caster again...