# Validating multi-Region DR for Terraform Enterprise with AWS FIS

DevFeed: [Validating multi-Region DR for Terraform Enterprise with AWS FIS](<https://devfeed.tech/articles/validating-multi-region-dr-for-terraform-enterprise-with-aws-fis-4653.md>)

Original publisher: [Read original article](<https://aws.amazon.com/blogs/architecture/validating-multi-region-dr-for-terraform-enterprise-with-aws-fis/>)

Author: Frenil Randeria

Published: 2026-09-09T21:05:02Z

Content type: article

Language: en

Sources: [AWS Architecture Blog](<https://devfeed.tech/sources/aws-architecture-blog.md>)

Topics: [Terraform](<https://devfeed.tech/topics/terraform.md>), [AWS Fault Injection Service (FIS)](<https://devfeed.tech/topics/aws-fault-injection-service-fis.md>), [Chaos Engineering](<https://devfeed.tech/topics/chaos-engineering.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>), [Amazon EC2](<https://devfeed.tech/topics/amazon-ec2.md>), [Databases](<https://devfeed.tech/topics/databases.md>)

Tags: [advanced-300](<https://devfeed.tech/tags/advanced-300.md>), [amazon-aurora](<https://devfeed.tech/tags/amazon-aurora.md>), [amazon-ec2](<https://devfeed.tech/tags/amazon-ec2.md>), [amazon-s3](<https://devfeed.tech/tags/amazon-s3.md>), [aws](<https://devfeed.tech/tags/aws.md>), [aws-fault-injection-service-fis](<https://devfeed.tech/tags/aws-fault-injection-service-fis.md>), [disaster-recovery](<https://devfeed.tech/tags/disaster-recovery.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [technical-how-to](<https://devfeed.tech/tags/technical-how-to.md>), [terraform](<https://devfeed.tech/tags/terraform.md>), [validation](<https://devfeed.tech/tags/validation.md>)

## AI overview

This article explains how to validate customer-operated multi-Region disaster recovery for Terraform Enterprise on AWS using three-phase AWS FIS experiments. It covers failover and failback testing, hidden dependency discovery, and reported recovery times of 12-14 minutes.

## Source excerpt

Learn how AWS, HashiCorp, and Athenahealth designed and chaos-tested a multi-Region disaster recovery strategy for Terraform Enterprise on AWS. This post walks through three-phase AWS Fault Injection Service experiments across Amazon EC2, Aurora, and Amazon S3, the 12-14 minute recovery times achieved, and the state file dependency pitfall to avoid.