Public, private, or hybrid cloud?

Basics,Technologies 25 Oct , 2016  


Learn about the three types of cloud deployment models: public, private, and hybrid – and find out which one makes the most sense for your business.

Public Cloud

With a public cloud, services are delivered to customers over a network that’s open for public usage. Public clouds offer efficiency and affordability, and are often multi-tenant – meaning the provider runs your service in a shared environment.

Examples of public clouds include Amazon Elastic Compute Cloud (EC2), IBM’s Blue Cloud, Sun Cloud, Google AppEngine and Windows Azure Services Platform.

Private Cloud
With a private cloud, services are maintained on a private network protected by a firewall. You can build a private cloud within your own data center – or subscribe to one hosted by a vendor. Private clouds offer the most security and control.
Hybrid Cloud

A hybrid cloud includes both cloud and on-premise solutions – often from multiple providers. Hybrid clouds offer variety, so you can pick and choose which aspects of your business are better off in a public or private cloud versus on premise.

By using a Hybrid approach, companies can maintain control of an internally managed private cloud while relying on the public cloud as needed.  For instance during peak periods individual applications, or portions of applications can be migrated to the Public Cloud.  This will also be beneficial during predictable outages: hurricane warnings, scheduled maintenance windows, rolling brown/blackouts.

Community cloud

Community cloud involves sharing of computing infrastructure in between organizations of the same community. For example all Government organizations within the state of California may share computing infrastructure on the cloud to manage data related to citizens residing in California.