Failover

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'''Failover''' means the automatic substitution of a functionally equivalent system component for a failed one: if one ''fails'' the other can take ''over''. The principle describes the transfer of operation from a failed component to a similar, unused and [[Redundancy|redundant component]] to ensure uninterrupted functionality. It happens automatic without human intervention, and is often found and used in [[Fault Tolerance|fault-tolerant]] architectures. Necessary for successful failover techniques is high [[Redundancy|redundancy]].

[[Category:Applied Principles]]