What are the practical differences between AWS EFS, EBS and S3?

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What are the practical differences between AWS EFS, EBS and S3?

Based on what i understood

  • S3 is a storage facility accessible any where

  • EBS is a device you can mount onto EC2

  • EFS is a file system you can mount onto EC2

So why would I use EBS over EFS? Seem like they have the same use cases but minor semantic differences? Although EFS is replicated across AZs where as EBS is just a mounted device. Why choose S3 over EFS? They both store files, scale and are replicated. What is the real difference?

Jul 26, 2018 in AWS by datageek
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  • It is a file storage connected with one or more instance 
  • It would not be available in your region
  • it is expensive compared to the EBS
  • It is scalable
  • Faster than S3 but slower than EBS
  • Good for sharable workloads and application


  • Block storage which is attached with only one instance in a particular region
  • The data's are stored in the bocks of the same size and arranged in a hierarchical manner
  • If you need multiple EBS with the same data then we can create it through snapshots 
  • It the fastest among the all
  • Hardly scalable
  • It is meant to be the EC2 drive


  • It is an object storage
  • The information can be stored in the form of file and folders but it would have some security issues
  • It is highly scalable
  • Cheapest among the all
  • We can host a static website, as content can be delivered through the internet
answered Aug 7, 2018 by sunshine
• 720 points

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