Dallas, TX -- (SBWire) -- 01/25/2011 -- Public clouds’ QoS is under close scrutiny

Public cloud providers claim superiority over on-premise IT infrastructures on two fronts: cost and QoS. On-premise IT supporters counter-attack at both levels, but the brunt of their offensive focuses on QoS – with a mix of valid criticisms and hyped assertions aimed at generating FUD (fear, uncertainty, and doubt). Public cloud providers should expect the criticism (and FUD) to continue in its intensity.

Public cloud SLAs need to improve

The market is slow to trust that public cloud service providers will deliver on their RASS promises – all the more since the service-level agreements (SLAs) that back these promises are skewed in favor of the providers. Market trust will build up, though, as SLAs, backed by certification schemes, improve. Those with QoS requirement levels for which public clouds cannot cater will keep to private clouds (including shared or virtual private clouds, or both).

Cloud-computing quality of service in perspective

Security is the number-one QoS issue

Security concerns are the most important obstacle to public cloud adoption, along with concerns related to regulatory compliance and data governance. However, public cloud risk can be managed like any other risk. It requires vendors, users, auditors, and governments to cooperate – a process that has started but will prove slow-moving.

Private clouds will find it hard to keep up with the public cloud Joneses

Enterprises’ QoS expectations are rising. The rise affects both private and public clouds. The more demanding enterprises become with public cloud SLAs and QoS at all (RASS) levels, the more likely the same enterprises will be to make the same demands of their IT departments. Considering the status of many internal data centers, public cloud providers may find it easier to meet these demands than IT departments.

Private clouds will converge with public ones

In order to deliver satisfactory QoS and SLAs, public cloud providers have made technology and design choices that enterprises may not be able or willing to make. Both sides are on a convergence path, though. On one hand, enterprises will take a step forward and, for example, rethink how best to design new applications for scalability. On the other hand, public clouds will take two steps back.

Many have chosen designs and technologies that have yet to become mainstream. These will evolve towards approaches that are more familiar to developers, or will mask the “exotic” elements of their approaches, especially when it comes to platform-as-a-service(PaaS)offerings.

Cloud-computing quality of service in perspective
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