Summary

Scalability is an important and crucial architectural concern. Almost every application and every architect try to implement scalability along with availability and performance. Azure is a mature platform that understands the need of scalability for applications and provides scalability options for both PaaS as well as IaaS solutions. PaaS app services can be configured to auto scale and virtual machines can be deployed on a scale set to take advantage of scaling. Scaling can be up/down/out/in. Similar to High Availability, scalability is not an afterthought and should be part of the application life cycle development from the planning phase itself. Scaling can be vertical by increasing the size of virtual machine instance or can be horizontal in which additional servers are added to the existing set. VMSS provides a model that holds metadata information for the entire...