Amazon EBS (Elastic Block Store)

  • EBS volumes are network attached storage that can be attached to EC2 instances.

  • EBS volume data persists independently of the life of the instance.

  • EBS Volumes do not need to be attached to an instance.

  • You can attach multiple EBS volumes to an instance.

  • You cannot attach an EBS volume to multiple instances (Use EFS instead).

  • EBS volume data is replicated across multiple servers in AZ

  • EBS volumes must be in same AZ as the instances they are attached to

  • Root EBS volumes are deleted on termination by default.

  • Extra non-boot volumes are not deleted on termination by default.

  • The behavior can be changed by altering the DeleteOnTermination attribute.