Scenario 1
A homogeneous system of 10 servers, each with 1 terabyte of Raw SSD Capacity, 1 hot spare, and a protection scheme of 6+2.
SSDNetCapacity = 10TB * (10-1) / 10 * 6/(6+2) * 0.9 = 6.075TB
Scenario 2
A homogeneous system of 20 servers, each with 1 terabyte of Raw SSD Capacity, 2 hot spares, and a protection scheme of 16+2.
SSDNetCapacity = 20TB * (20-2) / 20 * 16/(16+2) * 0.9 = 14.4TB