Cisco Blogs


Cisco Blog > Data Center and Cloud

Clarifying Internal Cloud versus Private Cloud

Many companies are rapidly evolving toward cloud computing, though from different starting points and not without debate as to the best direction or computing model. For example, advocates of public cloud computing sometimes advise not owning any software or hardware or employing any IT administrators and instead relying on professional providers of IT applications, platforms, infrastructure, and services.

On the other side of the debate are those who have spent years building IT infrastructures, whose concerns must be addressed since reliability, security, SLAs, and interoperability will determine the success of the various cloud computing models within the enterprise.

While internal and external clouds are based on the ownership of where the computing resources reside, two other cloud types – public clouds and private clouds -- have more do to with the control point of the cloud applications and resources.  

Regardless, as a first step for some organizations just exploring cloud computing, one key to choosing the right cloud computing approach is understanding the definitions and benefits of each cloud type.

In this video, James Urquhart, market strategist for cloud computing and data center virtualization at Cisco, provides a high-level breakdown on the distinctions between internal and external clouds vs. private and public clouds, and some of the benefits.

In an effort to keep conversations fresh, Cisco Blogs closes comments after 60 days. Please visit the Cisco Blogs hub page for the latest content.

4 Comments.


  1. Clear explanation – would be good to see this classification adopted across the industry. Are you planning videos about hybrid cloud and the intercloud? LeitM

       0 likes

  2. As in my blog post, this clarifies many things in the confused cloud computing market.

       0 likes

  3. hey guysvery clean explanation.did the research and found also very clear and nice blog post:http://bigdatamatters.com/bigdatamatters/2009/09/private-cloud-eucalyptus.html

       0 likes

  4. What is the difference then between private cloud and hybrid cloud. As per your explanation, private cloud seems to be addressing the hybrid scenario as well.

    Also how is the internal cloud different from an IT organizations internal data center? Are they the same?

       0 likes