Cisco Global Cloud Index:

RAN Wireless creates private wireless data networks for enterprise customers that need reliable, secure information exchange over large geographic areas. These networks are ideal for for critical data that shouldn’t depend on shared, congested public networks.

Hyperscale Data Centers

• Hyperscale data centers will grow from 259 in number at the end of 2015 to 485 by 2020. They will represent 47 percent of all installed data center servers by 2020.
• Traffic within hyperscale data centers will quintuple by 2020. Hyperscale data centers already account for 34 percent of total traffic within all data cent

Global Data Center Traffic

• Annual global data center IP traffic will reach 15.3 zettabytes (ZB) (1.3 ZB per month) by the end of 2020, up from 4.7 ZB per year (390 exabytes [EB] per month) in 2015.
• Global data center IP traffic will grow 3-fold over the next 5 years. Overall, data center IP traffic will grow at a compound annual growth rate (CAGR) of 27 percent from 2015 to 2020.

Data Center Virtualization and Cloud Computing Growth

• By 2020, 92 percent of workloads will be processed by cloud data centers; 8 percent will be processed by traditional data centers.
• Overall data center workloads will more than double (2.6-fold) from 2015 to 2020; however, cloud workloads will more than triple (3.2-fold) over the same period.
• The workload density (that is, workloads per physical server) for cloud data centers was 7.3 in 2015 and will grow to 11.9 by 2020. Comparatively, for traditional data centers, workload density was 2.2 in 2015 and will grow to 3.5 by 2020.

Public vs. Private Cloud

• By 2020, 68 percent of the cloud workloads will be in public cloud data centers, up from 49 percent in 2015 (CAGR of 35 percent from 2015 to 2020).
• By 2020, 32 percent of the cloud workloads will be in private cloud data centers, down from 51 percent in 2015 (CAGR of 15 percent from 2015 to 2020)

Global Cloud Traffic

• Annual global cloud IP traffic will reach 14.1 ZB (1.2 ZB per month) by the end of 2020, up from 3.9 ZB per year (321 EB per month) in 2015.
• Global cloud IP traffic will almost quadruple (3.7-fold) over the next 5 years. Overall, cloud IP traffic will grow at a CAGR of 30 percent from 2015 to 2020.
• Global cloud IP traffic will account for more than 92 percent of total data center traffic by 2020.

Cloud Service Delivery Models

• By 2020, 74 percent of the total cloud workloads will be software-as-a-service (SaaS) workloads, up from 65 percent in 2015.
• By 2020, 17 percent of the total cloud workloads will be infrastructure-as-a-service (IaaS) workloads, down from 26 percent in 2015.
• By 2020, 8 percent of the total cloud workloads will be platform-as-a-service (PaaS) workloads, down from 9 percent in 2015.

Workloads by Application

• By 2020, enterprise workloads will account for 72 percent of total data center workloads, down from 79 percent in 2015
• By 2020, consumer workloads will account for 28 percent of total data center workloads, up from 21 percent in 2015.
• Within the enterprise segment, compute (29 percent of enterprise workloads by 2020) and collaboration (24 percent of enterprise workloads by 2020) are the two main contributors to workload totals
• Within the consumer segment, video streaming (34 percent of consumer workloads by 2020) and social networking (24 percent of consumer workloads by 2020) are the two main contributors to workload totals.
• Within the enterprise segment, database/analytics and IoT will be the fastest growing applications, with 22 percent CAGR from 2015 to 2020, or 2.7-fold growth.
• Within the consumer segment, social networking (33% CAGR from 2015 to 2020) and video streaming (32 percent CAGR from 2015 to 2020) will be the fastest growing applications.

Data Center Storage

• By 2020, data center storage installed capacity will grow to 1.8 ZB, up from 382 EB in 2015, nearly a 5-fold growth.
• By 2020, the total global installed data storage capacity in cloud data centers will account for 88 percent share of total DC storage capacity, up from 64.9 percent in 2015.

Data in Data Centers, Big Data, and IoE

• Globally, the data stored in data centers will quintuple by 2020 to reach 915 EB by 2020, up 5.3-fold (a CAGR of 40%) from 171 EB in 2015.
• Big data will reach 247 EB by 2020, up almost 10-fold from 25 EB in 2015. Big data alone will represent 27 percent of data stored in data centers by 2020, up from 15 percent in 2015
• The amount of data stored on devices will be 5 times higher than data stored in data centers, at 5.3 ZB by 2020.
• Driven by the Internet of Things, the total amount of data created (and not necessarily stored) by any device will reach 600 ZB per year by 2020, up from 145 ZB per year in 2015. Data created is two orders of magnitude higher than data stored

Consumer Cloud Storage

• By 2020, 59 percent (2.3 billion) of the consumer Internet population will use personal cloud storage, up from 47 percent (1.3 billion users) in 2015.
• Globally, consumer cloud storage traffic per user will be 1.7 gigabytes per month by 2020, compared to 513 megabytes per month in 2015.

Multiple-Device and -Connection Ownership

• North America (7.3), followed by Western Europe (5.5), had the highest average number of devices or connections per user in 2015, followed by Middle East and Africa (5.4), Latin America (4.7) Central and Eastern Europe (4.5), and Asia Pacific (4.5).
• Global cloud IP traffic will almost quadruple (3.7-fold) over the next 5 years. Overall, cloud IP traffic will grow at a CAGR of 30 percent from 2015 to 2020.
• By 2020, North America (13.6), followed by Western Europe (9.9), will have the highest average number of devices or connections per user, followed by Central and Eastern Europe (6.2), Latin America (5.2), Middle East and Africa (5.0), and Asia Pacific (5.0).