I am new to AWS EC2 and I have just purchased a t3 medium reserved instance. I would like to add 100 GB of SSD storage to my instance and use it as the instance's primary hard disk. How can I do this? I did not see any option of adding and configuring the SSD disk when I purchased the instance.
I have purchased a linux/unix instance without any AMI. I intend to install Ubuntu 18.04 as the OS. Please advise.