AWS EFS vs EBS vs S3 (differences & when to use?)

Question

As per the title of this question, what are the practical differences between AWS EFS, EBS and S3?

My understanding of each:

• S3 is a storage facility a

Answer 1

Amazon EBS provides block level storage - It is used to create a filesystem on it and store files. Amazon EFS - its shared storage system similar like NAS/SAN. You need to mount it to unix server and use it. Amazon S3 - It is object based storage where each item is stored with a http URL.

One of the difference is - EBS can be attached to 1 instance at a time and EFS can be attached to multiple instances that why shared storage. S2 plain object storage cannot be mounted.