Jisho

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Noun
1. hot spareComputing
Wikipedia definition
2. Hot spareA 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 “Hot spare” on English Wikipedia
Read “ホットスペア” on Japanese Wikipedia
Read “Hot spare” on DBpedia
Other forms
ホット・スペア

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