title: AWS Scale out , Scale Up
body: <p>In AWS, we come across scaling up (Adding more storage i.e from t1.small to t2.medium or t2.large)  and scaling out is adding up of instances (adding EC2 instances or other). How are these related to Horizontal scaling and vertical scaling. Also, what is preferred to be used more in Recovery and Backups, Volume management more often while the condition is to minimize the cost of the infrastructure maintenance. </p>