You can use RAID 3 or 5 with four drive modules only on one Xserve RAID controller.

RAID 3 or 5

Appears

as

RAID 3 or 5

Disk 1

RAID 3 or 5

Appears

as

RAID 3 or 5 Hot spare

Disk 1

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Image 68
Apple NMB-003 manual RAID 3 or