Failover to Secondary

When a regional service event affects the Unicorn application in the primary region N. Virginia (us-east-1), you want to fail-over to the secondary region N. California (us-west-1).

We assume a regional service event has occurred. In this section, we will manually fail over the application to the secondary region, N. California (us-west-1). You can consider using Amazon Route53 or other DNS (Domain Name Services) fail-over routing in a real-world scenario. You can further automate by subscribing to application notifications.