Worldwide LHC Computing Grid about page 2017: "Even after filtering out 99% of it, in 2017 we're expecting to gather around 50 petabytes of data. That's 50 million gigabytes, the equivalent to nearly 15 million high-definition (HD) movies."
Worldwide LHC Computing Grid main page 2017: "WLCG is the world's largest computing grid. It is supported by many associated national and international grids across the world, such as European Grid Initiative (Europe-based) and Open Science Grid (US-based), as well as many other regional grids."
