Redundant Systems
Redundant systems are a design principle in computing and engineering where duplicate components or processes are implemented to increase reliability and availability. This involves creating backups or failover mechanisms that automatically take over if the primary system fails, minimizing downtime and data loss. It is a core concept in high-availability architectures, disaster recovery, and fault-tolerant computing.
Developers should learn and implement redundant systems when building mission-critical applications, such as financial services, healthcare systems, or e-commerce platforms, where downtime can lead to significant financial or safety risks. It is essential for ensuring business continuity, meeting service-level agreements (SLAs), and enhancing user trust by providing consistent and resilient services.