SmartDataCollective: Public vs. Private Cloud: How to Integrate Your Data Across Both
Private clouds are a natural extension of the virtualization revolution of the late 1990s and early 2000s, and they give organizations the ability to quickly create virtual machine environments— whether they are running vSphere, OpenStack, CloudStack or some other technology. Ultimately, though, that private cloud is based on capital expense of bare metal hardware in a data center you are responsible for.
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