hot spare
A backup device such as a hard disk or controller that is in a standby mode, meaning it is online and available should the primary device go offline or fail. The system would detect the failure and automatically switch to the hot spare to use as a replacement. Hot spare is commonly used in RAID arrays where additional drives are attached to the controller and left in standby mode until a failure occurs.
Compare with hot standby.
See hot swapping, also called hot plugging.
Read Also:
- hot spot
An area of a graphics object, or a section of text, that activates a function when selected. Hot spots are particularly common in multimedia applications, where selecting a hot spot can make the application display a picture, run a video, or open a new window of information.
- hotfix
A package composed of one or more files used to address a problem or issues in consumer products. Hotfix is synonymous with patch.
- hot standby
(hot stand´bī) (n.) A method of redundancy in which the primary and secondary (i.e., backup) systems run simultaneously. The data is mirrored to the secondary server in real time so that both systems contain identical information.
- hotlist
A list of frequently accessed documents. The term is often used to describe a list of Web pages that you keep in one place for easy access. In Netscape Navigator, the hotlist is called the bookmark list. In Internet Explorer, it’s called the Favorites folder.
- Hotspot
A specific geographic location in which an access point provides public wireless broadband network services to mobile visitors through a WLAN. Hotspots are often located in heavily populated places such as airports, train stations, libraries, marinas, conventions centers and hotels. Hotspots typically have a short range of access.