Cloud vs. Cloud: Private Cloud Collaboration More Affordable than Office 365 - Slide 4

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SharePoint is the exception to the rule in the study with the private cloud weighing in 9 percent more expensive than Office365. However the main factor driving up the private cloud costs is a secondary DR site. If this is excluded from the calculations then the private cloud drops to 15 percent less than the public cloud.

Azaleos® Corporation, the global managed Exchange, managed SharePoint and managed Lync services company, recently announced the release of an independent report by Osterman Research that compares the cost of ownership for private cloud and public cloud deployments of messaging and collaboration systems.

According to the report entitled “Cloud vs. Cloud: Comparing the TCO of Office 365 and Private Clouds”, the cost differences associated with implementing the various components of the Microsoft UC stack can vary substantially based on the delivery model used.

“In a nutshell, we found that the private cloud model of delivering and managing enterprise grade services using the Microsoft stack is less expensive than the public cloud because of two primary factors,” said Michael Osterman, president of Osterman Research, Inc. “First, the base price for public cloud provider services is higher than the fully amortized price of the hardware, software and other infrastructure elements used in a private cloud deployment,” explained Osterman. “Next, when deploying an enterprise scale system, some of the additional features like adding voice functions to Lync or extra bandwidth in an Exchange environment are much more expensive in the public cloud than in a private cloud scenario,” he concluded.

Cost Analysis Model

The report compares the total cost of ownership for the Microsoft UC stack using private cloud, public cloud and on-premise deployment models over a 36-month lifecycle. The analysis focused on a base of 5,000 enterprise users. It compares a “Basic Configuration” (the infrastructure and services required to support basic functionality for each element of the Microsoft stack) and an “Enterprise Configuration” of capabilities. In addition, the calculations presented in the report reflect the pricing of Office 365 in the first quarter of 2012, including the reductions of approximately 20 percent announced in mid-March 2012.

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