What is fault tolerance?



  • Fault Tolerance

    Having fault tolerance allows a system to continue to function without disruption in the event of a single or multiple failures.

    fault_tolerance.png

    The diagram show a computer cluster configuration where the servers have redundant devices, disk, cpu, memory, and network cards and ports. Even if an entire server goes offline or has faults, the user can continue to use the service in a degraded capacity.

    An in-depth explanation here: http://en.wikipedia.org/wiki/Fault_tolerance


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