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Calculate the storage efficiency of RAID level 1, 3, 5 and 6. The number of disk drives available are 6 each having capacity of 200 GB. Also find the usable capacity of each RAID level.
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Raid usable capacity is calculated simply by dividing the total usable capacity of the drive by the sum of the capacities of all the drives that underline the array

Given:

RAID 1 = 100(disks/2)/disks=100(6/2)/6=83.33%

RAID 2= 100*(disks-(disks+1)/log(2)/disks

RAID 3= 100(disks-1)/disks=100(5)/6=83.3%

RAID 4=100*(disks-1)/disks

RAID 5= 100(disks-1)/disks=100(5)/6=83.3%

RAID 6=100(disks-2)/disks=100(4)/6=66.66%

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