DCN April 2017 - Page 37

smart cities private investment; a 2013 survey of water utilities found that utility companies could save between $7.1bn and $12.5bn each year by using smart water solutions. What do data centres need to provide to enable smart cities? Smart cities will collect data from the Internet of Things (IoT) and connected sensors embedded in the physical infrastructure of cities. This data will be analysed to extract information to perform functions like direct cars to free parking spaces, redirecting traffic around accidents, managing power based on demand and turn lights and heating off in buildings when not in use. To meet the needs of these data driven cities, data centres will need to be capable of handling vast quantities of data. The 130 Exabytes now running across global networks will be dwarfed by the 40,000 Exabytes predicted by 2020. Processing more data does Smart cities will collect data from the Internet of Things and connected sensors embedded in the physical infrastructure of cities. not require data centres to get bigger, although with the demise of More’s law that may change, but it certainly does require a lot more power. This needs to be factored into the choice of location, arrangements with the national grid and contracts for back up power in the event of outages. Many of the advantages of smart cities will come through real time processing of this data. For example, sensors in the road will adapt traffic light