Global hot spare:
A global hot spare is not assigned to a specific logical drive, it will protect any redundant logical drive on the controller. (RAID 0 logical drives and simple volumes are non-redundant and are not protected by hot spares.) You can designate a global hot spare before or after you build logical drives on a controller.
Dedicated hot spare:
A dedicated hot spare is assigned to one or more specific logical drives and will only protect those logical drives. A dedicated hot spare that is assigned to protect more than one logical drive is called a pool spare. You must create the logical drive before you can assign a dedicated hot spare to protect it.
A global hot spare is not assigned to a specific logical drive, it will protect any redundant logical drive on the controller. (RAID 0 logical drives and simple volumes are non-redundant and are not protected by hot spares.) You can designate a global hot spare before or after you build logical drives on a controller.
Dedicated hot spare:
A dedicated hot spare is assigned to one or more specific logical drives and will only protect those logical drives. A dedicated hot spare that is assigned to protect more than one logical drive is called a pool spare. You must create the logical drive before you can assign a dedicated hot spare to protect it.
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