Returning operations to the primary system after it has been restored. Like moving back home after evacuation when it's safe to return.
After fixing the main server, IT teams performed a controlled failback during low-traffic hours to minimize disruption.
Failback is a disaster recovery (DR) process step, not a single cloud service. All major clouds support failback through DR building blocks (replication, backups, DNS/traffic steering, automation). The exact services used depend on whether you’re failing back VMs, databases, Kubernetes, or entire regions.