AWS Backup launches a low-cost warm storage tier for Amazon S3 backups

Published
November 18, 2025
https://aws.amazon.com/about-aws/whats-new/2025/11/aws-backup-low-cost-warm-storage-s3-backups/

AWS Backup Low-Cost Warm Storage Tier for Amazon S3

AWS Backup has introduced a low-cost warm storage tier for Amazon S3 backup data, reducing costs by up to 30%. After 60 days (or longer based on your settings), S3 backup data can be moved to this new tier, which offers the same performance and features as the warm storage tier, including ransomware protection, recovery, and auditing.

You can configure automatic tiering for all S3 backups in an account, a specific vault, or a bucket within a vault by setting an age threshold of 60 days or more. When enabled, existing backup data beyond the threshold automatically moves to the low-cost warm tier, delivering immediate cost savings with no action required and no performance impact.

What to do

  • Configure automatic tiering for S3 backups.
  • Monitor cost savings from the new low-cost warm storage tier.

Source: AWS release notes




If you need further guidance on AWS, our experts are available at AWS@westloop.io. You may also reach us by submitting the Contact Us form.

Follow our blog

Get the latest insights and advice on AWS services from our experts.

By clicking Sign Up you're confirming that you agree with our Terms and Conditions.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.