Before we go to the practical discussion on how we can Vertically Scale our Amazon RDS, let’s discuss first the difference between Vertical and Horizontal Scaling.
The scalability of an application refers to how many clients requests it can process at the same time. The limit of scalability is reached when a hardware resource runs out and can no longer accommodate requests. The program can no longer process additional requests once the resource limit is reached. Administrators should expand the infrastructure to accommodate more requests effectively by adding more resources such as RAM, CPU, storage, network devices, etc. Administrators use two approaches for capacity planning: horizontal and vertical scaling.
A cloud environment’s scalability is a must-have feature. To satisfy changing corporate IT requirements and manage unanticipated traffic surges, you must dynamically expand or decrease IT capacity and size. It will lower latency and boost speed while avoiding downtimes.
Horizontal scaling is a method of boosting capacity and effectively handling rising traffic needs by adding additional devices to the infrastructure. Horizontal scaling, as the name implies, involves adding additional servers to increase capacity horizontally. A load balancer distributes the workload and processing power among numerous servers in a system.
Vertical scaling is a sort of scalability in which a machine’s performance is improved by provisioning additional computing and processing capacity. Vertical scaling, also known as scale-up, allows you to expand the capacity of a computer while keeping resources inside the same logical unit. In this manner, the CPU, memory, storage, and network capacity are all boosted.
Now, let’s proceed to the practical discussion on how we can Vertically Scale our Amazon RDS:
Step 1: Open the Amazon RDS console
Step 2: Select the Database that you want to modify
Step 3: Click the modify button
Step 4: Under the Instance configuration section, change the DB instance type
In this example, I will vertically scale the RDS instance from db.t3.small to db.t3.medium.
Click Modify DB instance
It will take some time to modify your RDS instance.
Amazon RDS database instance was successfully updated to the db.t3.medium instance type.
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