What are the advantages of auto-scaling?

The key advantages of auto-scaling include-

•Companies which run their own web infrastructure, auto-scaling refers to allowing some of the servers to go offline when there is low load, thereby saving on electricity costs
•Companies which have their infrastructure hosted in the cloud, auto-scaling helps in keeping lower bills, as most of the cloud providers charge based on the total usage in place of maximum capacity
•Auto-scaling allows companies to run less time-sensitive workloads on machines which get free during low traffic sessions
•Auto-scaling solutions can also take care of replacing the faulty instances, thereby giving protection against hardware, network, and application failures
•Higher uptime is offered by auto-scaling for those cases where production workloads are variable and unpredictable