Failover meaning

Failover is defined as a secondary system where standby computers automatically take over if the main one stops working.

An example of failover is a backup computer taking over saving a file if the main computer suddenly breaks down.

An example of failover is a backup computer system containing current copies of all data and applications.

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Invoking a secondary system to take over when the primary system fails. Up-to-date copies of all required data and applications are maintained on the secondary system in order to respond immediately if the primary system becomes unusable. Also called "fallover." See replication.
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(computing, uncountable) A means for ensuring high availability of some critical resource (such as a computer system), involving a parallel backup system which is kept running at all times so that, upon detected failure of the primary system, processing can be automatically shifted over to the backup.
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(computing, countable) An automatic switch to a secondary system on failure of the primary system.

The system experienced numerous failovers during the hurricane.

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Origin of failover

fail +"Ž over