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78 Chapter 8
Storage Capacities for Xserve RAID Schemes
RAID Level Capacity
RAID 0 Total of all drives
RAID 1 Total of one drive
RAID 0+1 One-half the total capacity of all drives (sum of RAID 1 member
sets)
RAID 3 Total of all drives minus one drive (parity disk)
RAID 5 Total of all drives minus one drive (distributed parity)
RAID 10 One-half the total of all drives
RAID 30 Total of all drives minus two drives
RAID 50 Total of all drives minus two drives