A single spare SSD owned by one node in an HA pair can function as a "global" spare SSD if all of the following conditions are met: For other configurations a single non-partitioned SSD will not funct...A single spare SSD owned by one node in an HA pair can function as a "global" spare SSD if all of the following conditions are met: For other configurations a single non-partitioned SSD will not function as a global spare: automatically partition, change ownership, and be used to rebuild a degraded raid group. This will have to be done manually after each drive replacement and will result in no core available for analysis if a panic occurs.