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PC storage waning, Cisco study finds

More client data stored on handhelds and in cloud by 2019

A Sony Vaio desktop PC on show at Comdex 1999 in Las Vegas. Credit: IDGNS

Most data stored on client devices will move from PCs to elements such as smartphones and tablets by 2019, according to a Cisco study released this week on cloud traffic and services. Today, 73% of data stored on client devices is stored on PCs. But by 2019, 51% of it will move to non-PC devices, the Cisco study found.

Concurrent with this will be a fourfold growth in global cloud traffic from 2014-2019, and a tripling of global data center traffic. Driving this growth will be the cloud demands of mobile devices, popularity of public cloud services for business, and increasing virtualization and workload density in private clouds.

Public cloud is growing faster than private cloud, but private cloud will continue to outpace public cloud in its degree of virtualization, the Cisco study found. Public cloud workloads will grow at a 44% compound annual growth rate (CAGR) from 2014 to 2019, while private cloud workloads will grow at a 16% CAGR in the same time period.

By 2019, 56% of the cloud workloads will be in public cloud data centers, up from 30% in 2014. Forty-four percent will be in private cloud data centers, down from 70% in 2014.

Data center workloads will more than double from 2014 to 2019, while cloud workloads will more than triple over the same period.

By 2019, 59% of the total cloud workloads will be Software-as-a-Service workloads, up from 45 percent in 2014. Thirty percent will be Infrastructure-as-a-Service workloads, down from 42% in 2014; and 11% will be Platform-as-a-Service workloads, down from 13% in 2014.

On the consumer side, the next five years will see greater demand for cloud storage as the use of mobile devices using and exceeding internal storage grows. By 2019, 55% of the residential Internet population will use personal cloud storage, up from 42% in 2014.

Cisco expects the amount of global smartphone traffic to exceed the amount of data stored on those devices by 2017, requiring more cloud storage of that data.

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