This IDC study examines the video surveillance market, which is often associated with big data in that there is a strong desire for analyzing video surveillance feeds (e.g., facial recognition to prevent a criminal or terrorist action). The truth is, while video analytics technology exists, it is far too expensive and complicated for mainstream adoption, and legacy technology continues to rule.

"Despite geographical differences, it is clear that network video surveillance growth, driven by HD cameras and focused infrastructure offerings, is accelerating." — Chris Chute, research director, Worldwide Digital Imaging Solutions and Services.

"The amount of video surveillance being serviced on DVRs and NVRs will continue to be the majority until a significant transition to IP/network cameras occurs." — Dave Reinsel, group vice president, Storage, Semiconductors, GRC, and Pricing