Global Cloud Index: the Evolution of Data Center Traffic

As 2011 comes to a close, many busy executives and IT managers will be pondering the continued adoption of cloud applications within their organizations. How can a business be adequately prepared for the anticipated increase in demand for managed cloud services? Moreover, what are the key related market indicators that are shaping the future of emerging business technology deployments?

The Cisco Global Cloud Index is an ongoing effort to forecast the growth of global data center and cloud-based IP traffic. The forecast includes trends associated with data center virtualization and cloud computing.

From 2000 to 2008, peer-to-peer file sharing dominated Internet traffic. As a result, the majority of Internet traffic did not touch a data center, but was communicated directly between Internet users. Since 2008, most Internet traffic has originated or terminated in a data center.

Data center traffic will continue to dominate Internet traffic for the foreseeable future, but the nature of data center traffic will undergo a fundamental transformation brought about by cloud applications, services, and infrastructure.

By 2015, one-third of data center traffic will be cloud traffic.

Global Data Center IP Traffic: Already in the Zettabyte Era

The Internet may not reach the zettabyte era until 2015, but the data center has already entered the zettabyte era. While the amount of traffic crossing the Internet and IP WAN networks is projected to reach nearly 1 zettabyte per year in 2015, the amount of data center traffic is already over 1 zettabyte per year -- and by 2015 will quadruple to reach 4.8 zettabytes per year.

This represents a 33 percent CAGR. The higher volume of data center traffic is due to the inclusion of traffic inside the data center (Typically, definitions of Internet and WAN stop at the boundary of the data center).

The global data center traffic forecast, a major component of the Global Cloud Index, covers network data centers worldwide operated by service providers as well as private enterprises.

Traffic Destinations: Most Traffic Stays Within the Data Center

In 2010, 77 percent of traffic remains within the data center, and this will decline only slightly to 76 percent by 2015. The fact that the majority of traffic remains within the data center can be attributed to several factors:

• Functional separation of application servers and storage, which requires all replication and backup traffic to traverse the data center.
• Functional separation of database and application servers, such that traffic is generated whenever an application reads from or writes to a central database.
• Parallel processing, which divides tasks into multiple smaller tasks and sends them to multiple servers, contributing to internal data center traffic.

The ratio of traffic exiting the data center to traffic remaining within the data center might be expected to increase over time, because video files are bandwidth-heavy and do not require database or processing traffic commensurate with their file size.

However, the ongoing virtualization of data centers offsets this trend. Virtualization of storage, for example, increases traffic within the data center because virtualized storage is no longer local to a rack or server.

How does the transition of workloads from traditional data centers to cloud data centers effect the typical IT environment? Find the answer to this question, and learn more about the implications, by browsing the Cisco Global Cloud Index forecast data.

How Mobile Applications will Transform all Businesses

Mobile communication related activity is now considered the number one business technology issue on the minds of IT professionals in the Asia-Pacific region, according to the latest market study by IDC. Their analysts have been exploring, in depth, what mobility really means for organizations and how utilizing a variety of commercial mobile applications will become the norm in the near future.

Clearly, enterprise mobility has been a familiar topic for savvy business and technology leaders within most multinational organizations. For many companies it means mobile email, perhaps some form of unified communications (UC) or fixed mobile convergence (FMC).

Moreover, for the more adventurous IT leaders, they have already embarked on extending workplace applications into the mobile environment.

How Mobility Supports Operational Business Goals

Tim Dillon, IDC's Associate Vice President for Asia-Pacific says, "That's yesterday's view. It's changed. Organizations that continue to take enterprise mobility for granted will be swept aside in the new environment. Today, we’re seeing what we could call a perfect storm, created by the evolution of different areas of technology combining to fundamentally, and drastically change how organizations can use enterprise mobility to support business goals and strategies."

IDC research clients are seeing new access networks, new devices, new mobile operating systems, business related applications (apps), platforms and delivery models come together to create an all-embracing enterprise mobility.

Previous IT turning points were the move from mainframes to desktops, and the growth of Internet access. Now, new mobile devices and numerous productivity-oriented applications will constitute the next wave of business technology adoption.

Amongst the many issues that IDC will continue to explore, perhaps the changing landscape for devices is most prevalent -- where media tablets, such as the Apple iPad, and large-screen smartphones can now run almost fully functional versions of all enterprise software and services.

Smarter and more capable mobile operating systems, along with the applied talent of independent software developers, are providing the market with the ingredients for an agile ecosystem that can quickly mobilize these new applications -- extending the functionality of virtually all IT systems to mainstream mobile devices.

Mobility Combined with Cloud Computing Services

Dillon adds, "ICT is evolving on multiple fronts to create a true revolution in mobility. As enterprise applications become mobile, the boundaries of the enterprise become extended and blurred. With the constant evolution in devices and applications that tap into the core enterprise systems, all systems become increasingly vulnerable to the acts of negligent users and malicious attacks -- companies will need to pair pervasive mobility with ubiquitous security."

Furthermore, as more and more communication and collaboration applications transition to the cloud -- via either managed public or private cloud computing services -- demand for mobile access is likely to increase, in line with the continued user adoption of multifaceted smartphones and purpose-built business-centric tablets.

Healthcare IT Spending on Cloud to Surpass $1 Billion

The healthcare and social services vertical marketplace is extensive. It includes companies that provide medical care and social assistance for individuals -- which includes ambulatory healthcare services, hospitals, nursing and residential care facilities, and social assistance services.

Healthcare has been a growth vertical in U.S. business markets.

According to the latest market study by In-Stat, research supports a forecast of continued growth, with healthcare spending $518 million on Infrastructure as a Service (IaaS) in 2015.

Overall telecom spending by the healthcare and social services vertical was just under $16 billion in 2010.

Wireless communications is the largest of the product categories, comprising about 40 percent of telecom spending in the healthcare and social services vertical. Cloud computing and managed services is the fasting growing component.

Wireline data and wireline voice comprise the remainder of the telecom spend.

Increased Demand for Managed Cloud Offerings

"The healthcare vertical segment, across all sizes of business, and across nearly all product groups, is fast becoming the most robust business vertical segment in U.S. business markets," says Greg Potter, Analyst at In-Stat.

Demand for cloud computing services in particular has exploded and In-Stat believes there's nothing that would indicate the trend won’t continue -- at least through 2015.

Additional insights from the In-Stat study include:

• Small businesses with 20 to 99 employees will be the fastest growing size segment in healthcare, growing over 35 percent from 2010 to 2015.
• Enterprise wireless spending in healthcare will increase roughly 12 percent from 2010 to 2011.
• Healthcare public cloud computing spending will surpass $1 billion in 2013.

The Top Five Vertical Markets for IaaS Offerings

The cloud computing phenomenon now includes a set of services and technologies that enable the delivery of on-demand computing services over the Internet in real-time, allowing end-users instant access to data and applications from any device with online access.

Although still in its infancy, gaining traction has not been a problem. According to the latest market study by In-Stat, Infrastructure as a Service (IaaS) is set to grow to roughly $4 billion by 2015.

"Growth is expected in all public cloud service segments," says Greg Potter, Analyst at In-Stat.

Many Software-as-a-Service (SaaS) applications have been around for a long time, but now with the advent of entire platforms for these applications they're gaining the necessary visibility among businesses to reach renewed momentum in the marketplace.

Infrastructure-as-a-Service (SaaS) is also gaining increased traction, especially in the small business market.

In-Stat's latest market study includes the following insights:

• SaaS (software as a service) is poised to grow 142 percent between 2010 and 2015.
• Overall public cloud computing (IaaS, SaaS, and PaaS) is set to grow 153 percent from 2010 to 2015.
• Small business (5 to 99 employees) is the fastest growing size segment growing from $2.5 billion by 2010 to $6.6 billion by 2015.
• Small business account for over half of the market in SaaS and IaaS.

According to the In-Stat assessment, the top five vertical markets for IaaS offerings, in terms of 2011 market revenue, will be hospitality and food, healthcare and social services, and retail trade. The bottom 5 verticals will be mining, forestry, fishing, and agricultural services and utilities.