Cloud computing offers the benefit of on-demand compute resources, but it’s not a one-size-fits-all framework. Instead, cloud services are grouped into one of three broad categories: public, private and hybrid.
What sets these compute frameworks apart? Here’s how they compare.
Public Cloud
In a public cloud model, resources are managed by a third-party provider and accessed via the Internet, and multiple organizations share the same cloud. Public clouds are often used for public-facing applications or as large-scale testing environments.
Where public cloud excels is in the provision of highly scalable and elastic services that can help reduce the management workload of in-house IT teams. It also offers a way to shift IT spend from capital expenses, such as the purchase of new hardware, to operating expenses — companies only pay for the resources they use each month.
When it comes to customization, security and visibility, however, public clouds may fall short of private and hybrid alternatives.
Private Cloud
Private clouds are used by a single organization and are often delivered via an on-site network rather than over the Internet. This model is often used to secure critical data in highly regulated industries such as finance, healthcare or government.
Advantages of private clouds include complete control over compute environments and dedicated resource access. In other words, companies aren’t competing with any other organizations for compute or storage.
Drawbacks include limited scalability and increased cost since companies often own the hardware necessary to operate this cloud.
Hybrid Cloud
Hybrid clouds offer a mix of private and public components. For example, compute resources for data analytics might be delivered via a public cloud, while storage is privately managed. Companies may turn to hybrid cloud to optimize their cloud investments.
Opting for a hybrid model allows companies to create flexible, policy-driven environments that can scale on demand. It’s worth noting, however, that the hybrid approach also comes with increased complexity and IT management requirements and may require a substantial initial investment.
For more information about the various cloud models and how they can work for you, please see the accompanying resource.
Infographic created by HotWire Networks
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