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Cloud Computing Introduction, Types and Solutions

Introduction:

Cloud computing is an internet based computing which relies on sharing different computing resources in place of having personal devices or local network to handle software applications. It is similar to grid computing in which unused processing cycle of all computers in the same network are harnesses to provide solutions too intensive for any single computer. In cloud computing a wide range of services such as storage, servers and software applications are transferred to an organizations devices and computers via internet. Cloud computing uses the networks of server typically running low-cost consumer personal computer technology with specialized connections to transfer data processing chores across them. Virtualization is used to increase the power of cloud computing. The cloud computing services are divided into three categories: Infrastructure as a service (IaaS), Software as a service (SaaS) and Platform as a service (PaaS). Below we will discuss about all these services in detail.

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Infrastructure as a Service, abbreviated as IaaS, which is a service that contains the basic building blocks for cloud computing and provide access to computers, networking features and data storage space. It offers a high level of flexibility and control over IT resources and almost similar to existing and familiar IT resources. Some IaaS providers are:

Software as a Service, abbreviated as SaaS provides a complete cloud product that is run and managed by the service provider itself. It is also referred as end-user software applications. One needs not to worry about how the inside architecture is managed or the service is maintained. You only need to think about how you will be going to use that particular software module. An example of SaaS service is web based email system in which you can easily send and receive emails without maintaining email product, servers and OS that the email system is running on. The popular SaaS service providers include:

Platform as a service, abbreviated as PaaS help organizations to manage the inside infrastructure and allow you to concentrate on management and deployment of your software applications. It will help to increase productivity as you need not to worry about capacity planning, patching, application maintenance, resource procurement or any other undifferentiated heavy lifting involved in processing your software application. The PaaS service providers are:

Desktop as a service is abbreviated as DaaS, which is a cloud service where the back end of a virtual desktop is hosted by a DaaS service provider. Example of DaaS service providers are:

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What is Cloud Computing?

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Imagine racks of servers, humming along in a data center. Together, these servers become a massive pool of resources. Divide this "pool" into multiple virtual servers, and you create a "cloud."

For the utmost security, create a private cloud on dedicated hardware. But always remember to put appropriate security measures in place, no matter which cloud you choose.

Since virtual servers aren't physical, they are super flexible, giving you what you need at the moment. Spin up a server in minutes, and take it down just as easily.

You'll get the greatest cost savings in the public cloud, where your virtual servers run on physical servers that you share with other customers.

In the open cloud, you can easily move your cloud aroundwithout being locked into one provider or a closed, proprietary technology.

A hybrid cloud gives you the benefits of both public and private clouds. For example, you can put public-facing components in a public cloud, while storing customer-sensitive data in a private cloud.

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What is Cloud Computing by the Rackspace Cloud

Cloud computing forces you to wrestle with three key strategic, operational and people challenges:

Cloud computing enables speed, agility and innovation. You need to move from the drawing board to deployment. Is your organization ready to adapt?

You need to choose a cloud computing environment that's right for your organization. Should you consider private cloud, public cloud or a hybrid cloud solution? Which vendors play in this space? Will they be in business 12 months from now?

If someone else is running your computers and software, you need strategies to stay secure. Your security policy depends on how many pieces you control the more you own, the more you control. Are you ready to extend your enterprise security policy to the cloud?

You need a clear vision and effective processes, skills and organizational structure to drive cloud innovation in your enterprise. What cloud adoption strategies should you consider? What does your road map look like?

How will you create a compelling cloud vision? What strategies will better align business and IT? How should you measure business value? Is cloud technology selection really the easiest part?

How will you deliver value to the business? Which functions will you move to the cloud? What use cases will drive the most impact? How will you fund cloud computing? What are the spending and staffing risks? Should you continue to maintain an on-premises staff?

What cultural changes does your organization need to make? What political hurdles must you clear to get buy-in from your security department and other key stakeholders? Have you considered cloud requirements and needs for all stakeholders?

More and more organizations are moving services, storage, email, collaboration and applications to the cloud. You need to decide whether to choose to support private, public or a hybrid cloud mix. What's the right mix of infrastructure (IaaS), platform (PaaS), and application (SaaS) environments for your organization? Where are the cost savings?

Which services require the most agility and speed? What's the right balance of standard service offerings that will drive the most business value? Do you need to build an internal shared-service center? How does a private cloud implementation impact your data center architecture?

Which applications are most likely to move to public cloud delivery models? Will your organization bypass your IT department and get its applications from the cloud via software-as-service (SaaS) for a monthly pay-per-user-per-month subscription pricing model?

Is hybrid cloud really the future? What level of flexibility do you need to customize, manage and monitor your applications? How will the cloud services brokerage role define future IT organizations?

You need to break through the resistance and increase confidence that cloud is safe. You need to keep your data safe from prying eyes. You need your security team to buy in to your cloud initiatives. That's a tall order.

More than 50% of all data workloads are virtualized. How will you use virtualization to innovate? How can workloads be secured when consuming cloud-based infrastructure as a service? Are you ready to run your physical appliances as virtual appliances?

How will you protect your data in the cloud? What's the right level of recovery and manageability in your organization? What security controls should you inject? Who will have access? Should you use data tokenization? How will you migrate your data?

Which security vendors will get it right first? Which will guarantee delivery? What if the cloud fails? Where are the standards? What level of transparency do you need?

Originally posted here:
Cloud Computing - 2015 Trends, Topics & Research

The concept behind cloud computing is simple: it lets you run computer applications over the Internet, without having to buy, install or manage your own servers. You can run your company's IT operations with nothing more than a browser and an Internet connection. Applications, operating systems, servers and network switches all reside out of sight and within the metaphorical cloud, the Internet and are managed by your cloud computing vendor.

Cloud computing turns conventional software delivery on its head in a number of ways:

Best of all, cloud computing lets you focus on your business rather than on your software. You don't have to use valuable IT resources to keep business systems on life support. Instead, you can re-deploy them to focus on more strategic business initiatives while leaving your cloud computing vendor to worry about scalability, security, uptime, application maintenance and system upgrades.

And you can be confident in taking your business public, or into new regions of the world, without outgrowing your cloud computing resources, thanks to the world-class datacenters typically provided by cloud computing vendors.

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Cloud Computing, Cloud Software, Cloud Accounting - NetSuite