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I'm very confused to understand what a cloud datacenter actually is.

In my experience, the main services of a data center are the following:

  • Renting rackspace
  • Rack colocation
  • Server locating on rack
  • Server leasing
  • File storage
  • ... etc

Cloud datacenters services are almost same. But what differences are there between them?

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closed as not a real question by Shane Madden, EEAA, gWaldo, Ward, Smudge Feb 2 '12 at 9:10

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

"Cloud" is a marketing buzzword without relation to any specific technical aspect. As such, trying to define "cloud" in technical terms will inevitably fail. A "cloud" datacenter is simply a datacenter hosting "cloud" services (whatever that may mean in a specific case).

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yeha. and private cloud indicate the hosting your own cloud inside like openstack. public cloud is like you are renting cloud services from third party like Amazon ec2.

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