AWS EBS Volume is a durable and block-level storage device that is attached to an EC2 Instance. It is used as a physical Hard Drive, but one thing that other physical Hard Drive does not have and EBS Volume has is its flexibility.EBS Volumes are highly flexible, you can dynamically increase size, change Volume type, and modify the provisioned IOPS capacity on live Server.
Block-Level Storage is nothing but blocks of storage created on SAN(Storage Area Network) and each block are treated as an individual hard drive.
This tutorial Contains:
How to Extend/resize AWS EBS Volume in Windows Instance
How to extend/resize AWS EBS Volume in Linux Instance
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https://devopsmyway.com/how-to-extend-aws-ebs-volume-with-zero-downtime/