How big will big data get?
The digital universe will grow from 3.2 zettabytes today to 40 zettabytes in only six years. (One zettabyte is roughly a billion terabytes.) "When we look at the data volumes coming at us, it's mind-blowing," said Hortonworks CEO Rob Bearden in his keynote address at Hadoop Summit 2014 in San Jose, Calif. "The data volume in the enterprise is going to grow 50x year-over-year between now and 2020. I think the most important thing to recognize is that 85% of that data is coming from net-new data sources." And these sources, including mobile, social media, and web- and machine-generated data, present both a challenge and an opportunity for enterprises globally, Bearden noted.
(Source: Hadoop Summit 2014)