Oh wow, hadn't seen that one -- that was in the aftermath of the 2011 Thailand floods that seriously impacted hard drive availability, there was almost nothing in the supply channel so we had to shuck external drives.
Sadly there's not really a great one-stop page for this kind of info -- https://archive.org/web/petabox.php exists but is sadly outdated (I'll see about rewriting it sometime). We do public tours on Friday afternoons of the main office/datacenter (and our big annual event is coming up next Wednesday if you happen to be in the Bay Area: https://www.eventbrite.com/e/world-night-market-the-internet... )
Sadly there's not really a great one-stop page for this kind of info -- https://archive.org/web/petabox.php exists but is sadly outdated (I'll see about rewriting it sometime). We do public tours on Friday afternoons of the main office/datacenter (and our big annual event is coming up next Wednesday if you happen to be in the Bay Area: https://www.eventbrite.com/e/world-night-market-the-internet... )