I'm wondering what the difference is between a Global Hotspare and a Dedicate Hotspare? I'm busy trying to setup a RAID 1 (mirroring) array. I have a total of three hard disks so I would like to make one of them a Hotspare. What's the best option to go with?
I'm not sure if it matters but I have an Intel RAID Controller SRCSATAWB with regular SATA hard disks.
Hot-spare drives can be global (available to any array on a controller) or dedicated (only usable by one array). There can be more than one hot spare per array and the drive of the closest capacity is used. If both dedicated and global hot-spare drives are available, then the dedicated drive is used first. If the hot swap rebuild fails, then that hot spare is also marked failed.