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Internal vs. External Cloud

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Saved by 1 people (0 private), first by anonymouse user on 2009-04-02


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Many corporate data centers have many different generations of servers from a variety of vendors running different operating systems on different processors — Windows, AIX, Solaris, Linux, Intel, PowerPC, SPARC and so on. In contrast, most cloud services offer a limited choice of operating systems running on a narrow range of hardware.

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on 2009-04-02 by amiigo

This is actually a good reason for virtualization, because it is easier to get VM host running on a couple platforms, than maintaining more specific software.

Steve Oberlin, chief scientist at Cassatt, a San Jose, Calif.-based IT infrastructure management software

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"Internal clouds help you to pool your computing resources into a cloud and manage it, applying server resources dynamically on the fly in response to demand," he says. "What you end up with is higher utilization and efficiency."

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organizations have already embarked on virtualization programs

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It enables applications that are not suitable for virtualization (such as those that require the resources of an entire server at peak times) to run more efficiently, and it includes virtualized servers anyway: virtualization, in other words, is part of an internal cloud solution, he says.

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Oberlin says an internal cloud goes beyond this

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Which is better, implementing an internal cloud or using a public cloud?

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James Staten, a principal analyst at Forrester

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"Internal clouds are good because you can follow all of your workflow and security guidelines, and ensure that you are running the right code. The trade-off is that you can't reach the economies of scale that public cloud providers achieve,"

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license management

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on 2009-04-03 by amiigo

Many server software components have open source versions available, including customized VM images.

adapting to the processes of the public cloud

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have to work with what is on offer

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get the benefits of economies of scale

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