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

78 Chapter 8

Apple NMB-003 manual Storage Capacities for Xserve RAID Schemes