Hot-spare drives supply additional protection to a RAID configuration. If a physical drive fails in configurations other than RAID level-0, the hot-spare drive automatically replaces the failed physical drive. Subsequently, the logical device can be rebuilt using the hot spare.
Note: You cannot use
hot-spare drives with RAID level-0.
You can create a hot-spare drive in the Configuration wizard when you first
configure the controller. If you choose not to create a hot-spare
drive at that time, you can create the hot-spare at another time.
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