ホットスタンバイ

ホ

ッ

ト

ス

タ

ン

バ

イ

Meanings

1

noun

hot standby

IT term for a redundant system or component that is powered on and ready to take over immediately if the primary fails.

ホットスタンバイ

Variant with a middle dot; less common but seen in some technical documents.

ホット・スタンバイ

コールドスタンバイ
Cold standby is a backup system that is powered off and requires manual or delayed activation, unlike hot standby which is always on and ready.
冗じょう長ちょう化か
Redundancy in general; ホットスタンバイ is a specific method of achieving high availability.

Borrowed from English 'hot standby', a compound of 'hot' (powered on, active) and 'standby' (ready reserve).