Hot Spare

A hot spare or hot standby is used as a failover mechanism to provide reliability in system configurations. The hot spare is active and connected as part of a working system. When a key component fails, the hot spare is switched into operation. More generally, a hot standby can be used to refer to any device or system that is held in readiness to overcome an otherwise significant start-up delay.

Read more about Hot Spare:  Examples, Explanation, Computer Usage, Hot Standby Operation in Railway Signalling

Famous quotes containing the words hot and/or spare:

    They come like sacrifices in their trim,
    And to the fire-eyed maid of smoky war
    All hot and bleeding will we offer them.
    William Shakespeare (1564–1616)

    I would like to spare the time and effort of hack reviewers—and, generally, persons who move their lips when reading.
    Vladimir Nabokov (1899–1977)