In the inaugural Cisco® Global Cloud Index (2010 – 2015) issued today, Cisco estimates global cloud computing traffic will grow 12-fold from 130 exabytes to reach a total of 1.6 zettabytes annually by 2015, a 66 percent compound annual growth rate (CAGR. One zettabyte is equal to a sextillion bytes or a trillion gigabytes―1.6 zettabytes is approximately equivalent to:
22 trillion hours of streaming music.
5 trillion hours of business Web conferencing with a webcam.
1.6 trillion hours of online high-definition (HD) video streaming.
Cloudis the fastest growing component of data center traffic, which itself will grow 4-fold at a 33 percent CAGR to reach 4.8 zettabytes annually by 2015. Cloud is also estimated today to be 11 percent of data center traffic, growing to more than 33 percent of the total by 2015. Cloud is becoming a critical element for the future of information technology (IT) and delivery of video and content. Read More
