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BLOG: The myths of cloud computing

Andrew Milroy | Nov. 21, 2011
Unveiling the truths surrounding these myths.

Much adoption of SaaS has been driven by business units within enterprises rather than smaller organisations.

It is true that regulatory and compliance factors inhibit the use of public cloud services by enterprises, particularly in the financial services sector, across Asia Pacific. However, this only relates to customer data. There are many more applications in areas such as HR, ERP and accounting that lend themselves to the public cloud without causing regulatory challenges.

Myth #3 - Cloud computing is not suitable for mission critical activities

It is true that, in some cases, cloud computing is not suitable for mission critical activities. However, there are examples of cloud computing being used for mission critical workloads.

For example, Netflix uses Amazon for mission critical activities. Increasingly, we are seeing a variety of workloads shifting to the cloud, including the public cloud. Public cloud service providers are now offering improved SLAs, similar to other providers of services centred around mission critical activities.

The increased use of smart phones and tablets by senior executives and their demands to do their work on these devices is driving mission critical workloads into the cloud. These mobile devices carry minimal amounts of data and are designed to access data located remotely, in the cloud.

Public cloud services also offer high levels of business agility which is important with mission critical workloads.

Finally, 67 percent of server infrastructures are virtualised. Virtualisation is a key step on the journey towards cloud computing. Mission critical workloads can be expected to share this journey.

Myth #4 - Private clouds offer the benefits of cloud computing without the drawbacks

Security is often given as a drawback of public cloud computing that can be overcome by using private clouds. However, there is no evidence to suggest that private clouds are more secure than public clouds. In fact, most public clouds deploy best practice security policies and procedures. This is not always the case with private clouds.

There are a variety of different types of private clouds offering a few or many of the benefits of cloud computing. Typically, private clouds do not offer the following benefits that are usually offered by public cloud services:

  • An Opex model instead of a Capex one.
  • As much scalability as can be offered by public clouds.
  • Economies of scale associated with sharing resources, which are found in public clouds.
  • Little need for support services and scarce skills.

Andrew Milroy is vice president, ICT practice, Frost & Sullivan Asia Pacific

 

 

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