Synology: Difference Between a Hot Spare, Cold Spare and Hot Swap
Hot Spare: On models that support the feature, a hot spare is an HDD disk that occupies a spare drive slot. It is initialized and registered in Storage Manager as a Hot Spare. If another drive goes into a degraded state and fails, the system will bring the hot spare online to replace the faulty … Read more about Synology: Difference Between a Hot Spare, Cold Spare and Hot Swap