ホットスペア

noun

hot spare

Computing term for a redundant component (e.g., a disk) that is powered on and ready to take over immediately if an active component fails.

• RAID構成れいどこうせいでは、ホットスペアを用よう意いしておくと障しょう害がい時じに自じ動どうで再さい構こう築ちくが始はじまる。

  In a RAID configuration, if you have a hot spare ready, rebuilding starts automatically when a failure occurs.