In network architecture, duplication of critical components or functions is implemented to enhance reliability. This strategy ensures that if one element fails, a backup immediately takes over, preventing disruption. For example, a server cluster might use multiple power supplies; should one fail, others sustain operation.
The importance of this approach lies in minimizing downtime and maintaining continuous service. The benefits include increased resilience, improved fault tolerance, and enhanced user experience. Historically, implementing this strategy was costly, but advancements in technology have made it more accessible for various network sizes and budgets. Organizations that prioritize system availability frequently integrate these design principles into their infrastructure.
