Despite the economies of scale offered by public cloud providers, private cloud services will prevail for the foreseeable future while public cloud offerings mature, according to Gartner, Inc. Through 2012, IT organizations will spend more money on private cloud computing investments than on offerings from public cloud providers.
Gartner defines public cloud computing as a style of computing in which scalable and elastic IT-enabled capabilities are delivered as a service to external customers using Internet technologies. Private cloud computing is defined as a style of computing in which scalable and elastic IT-enabled capabilities are delivered as a service to internal customers using Internet technologies.
Private cloud services will be a stepping stone to future public cloud services and, over time, will span both private and public cloud resources in a hybrid manner. For many large enterprises, private cloud services will therefore be required for many years, perhaps decades, as public cloud offerings mature.Gartner analysts said appropriate investments in private cloud computing will also make it easier for enterprises to gradually use public cloud services in the future. For services destined to be cloud at some point in time, enterprises should evaluate the return on investment from developing private cloud services, while waiting for external offerings to mature.
Enterprises also need to be aware that some IT services are destined for the cloud computing style and others are destined for more integration and intimacy with the business. Once it is established that a particular service is destined for cloud computing, then a decision needs to be made as to whether it makes more business sense to wait for a mature cloud service to appear or to develop private cloud services sooner.
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