Defining types of clouds

The cloud hosts a multitude of capabilities in a variety of configurations. There are three basic types: public, private, and hybrid.

12/13/2011


The cloud hosts a multitude of capabilities in a variety of configurations. There are three basic types: public, private, and hybrid.

  • Public cloud providers such as Amazon Web Services (aws.amazon.com) are open to anyone. “Anyone can provision resources,” said Steve Harriman, senior vice president of marketing, ScienceLogic. “Let’s say a project will take a number of engineers to do the design work and will need hardware on which to run the application. The project manager can open an account with AWS and request virtual machines, an inexpensive way to provision more computing power without procuring the physical servers. There is no investment in floor space or an environment to care for them. The project can provision the machines almost instantaneously and use them as long as they need them. Then, then can de-commission them, paying only for what they have used.”
  • In a private cloud, the service provider has its own data centers that provision infrastructure to individual clients or companies. Resources are not shared and are not for public use. Industrial manufacturing leans toward private clouds because they offer more control. Public clouds typically are more acceptable for open activities, while private clouds are chosen when formulas and recipes that are confidential or proprietary are involved. “The private cloud configuration is more isolated and arguably more secure,” said Harriman. “Although it is not happening as yet, we anticipate that, in the future, a large-company IT organization may become a type of private cloud provider for its own company. Its end-user constituents would have a menu of services from which they could select and would be charged for in an internal bill-back.”
  • As the name suggests, hybrid clouds are a combination of private and public types. Part of the infrastructure delivers resources from the public cloud while other resources reside in a private cloud. “Most cloud growth is taking place here because the technologies are becoming more heterogeneous,” noted Harriman. “Companies are more able to push internal and external resources more freely among cloud providers and can move those resources around with more agility.”

More about public and private clouds is available from ScienceLogic at www.sciencelogic.com. Or search public versus private clouds online for additional perspectives. Edited by Jeanine Katzel, Control Engineering contributing content specialist.

See related cloud-based automation articles associated with the December 2011 Control Engineering cover story.



No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Intelligent, efficient PLC programming: Cost-saving programming languages are available now; Automation system upgrades; Help from the cloud; Improving flow control; System integration tips
Smarter machines require smarter systems; Fixing PID, part 3; Process safety; Hardware and software integration; Legalities: Integrated lean project delivery
Choosing controllers: PLCs, PACs, IPCs, DCS? What's best for your application?; Wireless trends; Design, integration; Manufacturing Day; Product Exclusive
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.
This article collection contains several articles on improving the use of PID.
Learn how Industry 4.0 adds supply chain efficiency, optimizes pricing, improves quality, and more.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
Cyber security cost-efficient for industrial control systems; Extracting full value from operational data; Managing cyber security risks
Drilling for Big Data: Managing the flow of information; Big data drilldown series: Challenge and opportunity; OT to IT: Creating a circle of improvement; Industry loses best workers, again