This gives you a rough idea, but it has increased a lot since 2012: http://highscalability.com/blog/2012/9/11/how-big-is-a-petabyte-exabyte-zettabyte-or-a-yotta

This gives you a rough idea, but it has increased a lot since 2012: http://highscalability.com/blog/2012/9/11/how-big-is-a-petabyte-exabyte-zettabyte-or-a-yottabyte.html http://highscalability.com/blog/2012/9/11/how-big-is-a-petab... A lot of companies are producing many petabytes a day of logs and data.