Amazon EBS Fast Snapshot Restore

[ewbankkit]

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Description

You can now enable Fast Snapshot Restore (FSR) on Amazon Elastic Block Store (EBS) snapshots, ensuring that EBS volumes restored from FSR-enabled snapshots instantly receive full provisioned performance.

New or Affected Resource(s)

• aws_ebs_snapshot

Potential Terraform Configuration

resource "aws_ebs_snapshot" "example" {
  fast_snapshot_restore {
  }
}

References

Announcement.
Blog post.
User guide.

Requires AWS SDK v1.25.39:

• Update module aws/aws-sdk-go to v1.25.42 #10955

[blckct]

That's a cool feature!
It seems the configuration should be a simple true/false though? Maybe with an option to skip waiting for the snapshot to be optimised?

[ewbankkit]

@blckct A brief look at the API suggested to me that you would have to specify the AZs for the FSR.

[blckct]

@ewbankkit Oh, you're right.

[jleeh]

Would it make sense to have a seperate resource for this as well as a block within the snapshot resource?

Line of thinking is that FSR can be enabled and disabled independently to the snapshot creation, so users may want to enable/disable FSR in different pipelines to the snapshot creation. Especially considering the cost of FSR.

[Surajgupta9160]

Do we have any update on this feature?

[ron-spree]

Almost three years later, perhaps this has been implemented elsewhere, or is it still a wishlist/pending feature?

[nikoul]

Hello @breathingdust, happy to see this got prioritized. Any estimation on when it would be available? Happy to contribute if needed.
Thanks!

[jar-b]

Related APIs

• https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_EnableFastSnapshotRestores.html
• https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DescribeFastSnapshotRestores.html
• https://docs.aws.amazon.com/AWSEC2/latest/APIReference/API_DisableFastSnapshotRestores.html

Proposed Design

As the CreateSnapshot API does not provide a mechanism to enable/disable fast snapshot restoration as part of the initial creation, I'd propose implementing this as a separate, standalone resource. The EnableFastSnapshotRestores API can accept multiple snapshot identifiers in a single request, however, implementing this as a singular resource (single ID versus an array of IDs) aligns with the preferred design principles for the AWS provider. This design also prevents partial failure scenarios where some items complete successfully and others fail, leaving a complex remote state to reconcile on the following plan/apply.

resource "aws_ebs_fast_snapshot_restore" "example" {
  availability_zone  = "us-east-2a"
  source_snapshot_id = aws_ebs_snapshot.example.id
}

[github-actions]

This functionality has been released in v5.32.0 of the Terraform AWS Provider. Please see the Terraform documentation on provider versioning or reach out if you need any assistance upgrading.

For further feature requests or bug reports with this functionality, please create a new GitHub issue following the template. Thank you!

[github-actions]

I'm going to lock this issue because it has been closed for 30 days ⏳. This helps our maintainers find and focus on the active issues.
If you have found a problem that seems similar to this, please open a new issue and complete the issue template so we can capture all the details necessary to investigate further.