Interesting. For a BackBlaze type device with 60 drives, that's 3.6PB of raw storage.
BackBlaze's site is blocked at work, but aren't they up to using 22TB drives? And I think Seagate announced 30TB spinning drives this year. So that's 1.3PB or 1.8PB with 3.5" drives.
Now if you double the amount of drives (assuming those new Samsung drives are 2.5", and use the propsoed 122TB drives, and you could cool and power it) you'd have 14.4PB!
Amazing since the original design needed like 15 pods for a single petabyte.