Autoscaling is a cloud computing technique that adjusts the computational resources in a server farm automatically based on the load. It is measured by the number of active servers in the farm.
What is Autoscaling in Cloud Computing?
Autoscaling, also known as auto scaling, auto-scaling, or automatic scaling, is a cloud computing technique that automatically adjusts the amount of computational resources in a server farm based on its load. In other words, it provides an efficient way of automatically increasing or decreasing the number of servers running in a farm, based on the demand or the amount of traffic it receives.
How Does Autoscaling Work?
Autoscaling uses various metrics to monitor the load on the server farm, such as CPU usage, memory usage, network traffic, and response times. Based on these metrics, autoscaling dynamically adjusts the number of servers in the farm, optimising the use of resources and minimising waste.
For instance, if there is a sudden surge in traffic that exceeds the current capacity of the server farm, autoscaling can automatically launch new instances of the application on new servers to handle the load. Once the traffic decreases, the autoscaling automatically reduces the number of servers to avoid wasting resources.
What Benefits does Autoscaling Offer?
1. Cost-Effective: Autoscaling allows you to pay only for the computing resources you need, which means that you don’t have to pay for unnecessary servers when there are no requests.
2. Improved Performance: Autoscaling optimises resource utilisation so that your applications always have enough capacity to handle traffic, which helps maintain consistent application performance.
3. Enhanced Availability: Autoscaling ensures that your applications are always available, even during peak traffic times or hardware failures. It ensures that the application is always up and running.
4. Scalability: Autoscaling enables you to easily scale your applications, as it automatically provides additional servers when necessary, allowing you to handle increased traffic loads.
The net result
In total, Autoscaling is an essential feature of cloud computing that offers numerous benefits, including improved application performance, scalability, cost-effectiveness, and availability. It allows you to automatically adjust the amount of computational resources in your server farm based on the actual demands of your users, maximising your resource utilisation and optimising your cost savings.