Wednesday 7 March 2018

1.1.b Elasticity

Definition of Rapid elasticity.
Rapid elasticity is a cloud computing term for scale able provisioning, or the ability to provide scale services. Experts point to this kind of scale able model as one of five fundamental aspects of cloud computing.

Rapid elasticity allows users to automatically request additional space in the cloud or other types of services. Because of the setup of cloud computing services, provisioning can be seamless for the client or user. The fact that providers still need to allocate and de-allocate resources is often irrelevant on the client or user's side. This is a very essential aspect of cloud technology. In a sense, cloud computing resources appear to be infinite or automatically available. That’s much different from older systems, where the limits of storage or memory were immediately visible to a user.

The idea of rapid elasticity does raise some concerns in practical cloud computing situations. Those who administer these kinds of systems explain that many different allocation or de-allocation requests can have an impact on the system. Requests that come from multiple sources can also be demanding and require precise administration. Some of those who provide guidelines for cloud computing recommend tools like monitoring and audit trails to tightly control all of the diverse requests and transactions that happen in the provision of cloud services, and the rapid elasticity that provides so much benefit to those who use the cloud.


Rapid Elasticity denotes the quality of an object to change and adapt to a new situation. In cloud computing, an end-user change request for already provisioned resources commonly initiates such transformation.

Cloud end users are empowered to request computing resources changes, which the cloud provider will automatically execute. As NIST points out, the rapid elasticity of a cloud deployment creates the perception of infinite resources and request to release resources which can happen at any time and with practically immediate results.


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