Comment by version_five

  Amazon Prime Day event resulted in an incremental 163 petabytes of EBS storage capacity allocated – generating a peak of 15.35 trillion requests and 764 petabytes of data transfer per day. 

The main thing that strikes me is how (seemingly) inefficient everything is. What do they possibly need this amount of data for in selling stuff? Are they taking high-def video of every customer as they browse for something to buy? I get that it's a huge company and this is (I guess) their business time, but how can the y need so much storage. Ditto for much of the other stuff.