What Is Rapid Elasticity?
If you're like most people, it means the ability to stretch and then quickly return to your standard shape. In the world of cloud computing, it means something else: scalable provisioning or the capacity to deliver scalable services. Experts point to this climbable model as one of five fundamental aspects of cloud computing. You're probably wondering how "rapid elasticity" is a cloud computing term. Let's start with the basics: Cloud computing is a model for storing and accessing your data via the Internet. That means you don't have to keep your data on your hardware. You can access it from anywhere, and you don't have to worry about losing it if your hardware crashes. So what does "rapid elasticity" mean in this context? Well, it's about scaling up or down quickly based on demand for your services. So if you need more computing power one day, you can get it instantly; if you don't need as much, you can turn off resources without worrying about anything else. We call this kind of scalable provisioning "elasticity." Experts agree that one of five fundamental aspects of cloud computing, along with on-demand self-service, broad network access, resource pooling and virtualization, is critical to understanding how the cloud works. The rapid elasticity of cloud computing does have some concerns for administrators. Different allocation and de-allocation requests can impact the system and multiple sources' requests. These kinds of proposals can be demanding and require precise administration. Some guidelines recommend tools like monitoring and audit trails to control all of the diverse demands so that all transactions happen in the provision of cloud services. In the past, when you wanted to use a cloud computing system, it was like renting a car. You had to reserve it and wait for it to be delivered. Now there's an alternative: you can rent one on the spot! If you don't like what you've got, give it back! This new kind of cloud computing is called "rapid elasticity," and it's gaining popularity.
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