Primary Benefits for Customers
In a 2010 IDC survey of IT decision makers, respondents identified "lower total cost of ownership" (TCO), the ability to "aid in disaster recovery," and "improved availability"
as the top 3 criteria in their consideration to move applications to the public cloud. Interestingly, three additional criteria followed closely behind, namely "lower IT software costs," "lower IT hardware costs," and "lower datacenter utility costs."
In the same survey, when respondents were asked to identify the three most important criteria in moving applications to the private cloud, "improved availability," the ability to "aid in disaster recovery," and the facilitation of "improved utilization of IT resources" were the top rated. Improved responsiveness to changes in workload demand was also highly rated (see Figure 1).
For public cloud computing, IDC believes that the primary benefits that will resonate with customers are those that are fiscally focused, along with the essentially mandatory requirements of availability and disaster recovery. In contrast, the key benefits of private cloud computing that appeal to potential customers focus less on TCO and more on improved utilization of IT resources, availability, and disaster recovery.