
Failover System
A failover system is a backup setup designed to ensure continuous operation of a service or system. If the primary system experiences a failure—like a server crashing or losing connection—the failover automatically switches to a standby system. This switch happens seamlessly, minimizing downtime and maintaining service availability. Think of it like a backup generator for electricity: if the main power fails, the generator kicks in instantly to keep everything running smoothly. Failover systems are essential for critical applications where even short interruptions can cause problems.