AWS EBS, also known as AWS Elastic Block Store, is a service that offers storage volumes for use with Amazon EC2 instances.
EBS volumes are designed for data that requires persistence. It is essential to back up data using AWS EBS snapshots.
| Once you create an EBS volume, you can attach it to an AWS EC2 instance. If the EC2 instance is stopped or terminated, all data on the attached EBS volume will remain intact. |
An EBS snapshot is an incremental data backup.
The initial backup of a volume captures all the data, while subsequent backups only copy the blocks of data that have changed since the last snapshot. This approach reduces storage costs by avoiding data duplication.
The image generated by Amazon Web Services illustrates the functioning of EBS Snapshots.
| When you delete a snapshot, only the data unique to that snapshot is removed. If the EC2 instance is stopped or terminated, all data on the attached EBS volume will remain intact. |