Elastic File System (EFS)

  1. EFS is block based storage.
  2. AWS Elastic File System storage capacity is elastic (grows /shrinks as needed) unlike EBS
  3. NFS V4 protocol
  4. 30 cents/GB month
  5. Multi AZ’s
  6. Thousands of concurrent connections are supported
  7. Read after write consistancy
  8. Create a EFS
    1. Provide AZ’s subnets, ips (optional)
    2. the mount name and instructions to mount (Linux only. Windows is not supported currently as of 2018)
  9. Permissions at folder/file level possible by IAM
  10. EBS can be mounted to single EC2 instance where as EFS can be mounted by multiple EC2 instances
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