Yanked from the Circuit: Comparing Active-Active and Active-Passive Continuity Workflows
When a circuit goes dark, the workflow that kicks in determines whether anyone notices. For teams running service continuity architectures, the choice between active-active and active-passive patterns is less about topology and more about process: how failover is triggered, how state is managed, and how operators get woken up. This guide compares these two workflows at a conceptual level, focusing on the operational rhythms they demand rather than just the network diagrams. We assume you're familiar with the basic definitions. Active-active spreads load across multiple sites, with all sites handling traffic simultaneously. Active-passive keeps one site idle, ready to take over if the primary fails. The real differences emerge in the workflows around health checking, data synchronization, and incident response. Let's walk through where these patterns show up in practice, what usually works, and what tends to break.