Fault tolerance is an essential component of architectural resilience. It refers to the ability of a system or architecture to continue functioning even in the event of a failure or fault. In other words, it is the ability to detect and recover from system errors or failures.
By incorporating fault tolerance into the architecture, it helps to ensure that the system remains operational even when one or more components fail. This enhances the system's reliability, availability, and performance.
For instance, redundant power supplies, servers, and storage devices can be employed to ensure that the system continues to operate even after a component failure. Redundant network links, load balancers, and failover mechanisms can also be utilized to enhance fault tolerance.
In summary, fault tolerance is critical to building resilient architectures that can withstand failure and continue to offer high-performance, reliability, and availability.
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