Dynamic Redundancy
Dynamic Redundancy is a fault tolerance technique in computing and engineering where redundant components are activated on-demand in response to failures, rather than running continuously. It dynamically allocates backup resources (e.g., servers, network paths, or hardware modules) to maintain system availability and reliability when primary components fail. This approach optimizes resource usage by keeping redundant elements idle until needed, reducing costs and energy consumption compared to static redundancy.
Developers should learn and use Dynamic Redundancy when designing high-availability systems, such as cloud services, telecommunications networks, or critical infrastructure, where minimizing downtime is essential but resource efficiency is also a priority. It is particularly valuable in scenarios with variable workloads or cost constraints, as it allows for scalable fault tolerance without the overhead of always-on redundancy. This concept is applied in technologies like load balancers, failover clusters, and distributed systems to ensure seamless operation during component failures.