Cloud Computing Describes

Scalability is a feature of Cloud Computing, But what is this terminology Scalability actually means ? We wrote in the previous detailed article on Cloud Computing that Cloud Computing’s one of the feature is “Scalability by decoupling the use of swings and infrastructure limitations”. This is an explanatory article in details on Scalability in Cloud Computing.

What Scalability actually means ?

In the context of software scalability means that a system of hardware and software, increases its performance with the addition of resources or other nodes / computers in a defined area in a proportional or linear pattern. Resources can be, for example, CPU, RAM, hard drives, network bandwidth etc. Scalability of a system measured with scaling factor or SpeedUp.

One can increase the performance of a system in two different ways:

By scaling up also known as vertical scaling
By scaling out also known as horizontal scaling

Example of scaling up would be the increasing of storage space, adding a CPU or installing a more powerful graphics card. Scaling out means increasing the performance of the system by adding additional computers / nodes. This is the important point of Scalability in Cloud Computing.

Read more: http://thecustomizewindows.com/2012/08/scalability-in-cloud-computing/

Cloud computing describes the approach, abstracted IT infrastructures (computing capacity, data storage, network capacity, or even finished software) dynamically adapted to the needs of a network to provide. From the user point of view, provided abstracted IT infrastructure seems distant and obscure, hidden in a “cloud” to happen. Supply and utilization of these services take place exclusively via defined technical interfaces and protocols . The range of cloud computing as part of services offered covers the complete spectrum of information technology and includes, among other things, infrastructure (such as processing power, disk space), platforms and software.

The term cloud computing was influenced by some fast-growing Internet companies like Amazon , Google and Yahoo. These companies were providing because of the rapid growth of their user base with the problem of having to hold ever-growing systems (for example, this would be for Amazon Christmas sales) and sufficient performance at peak load times.