In 1906, Italian economist Vilfredo Pareto created a mathematical formula to describe the unequal distribution of wealth in his country, observing that 20% of the people owned 80% of the wealth. If you think about it, that 80/20 rule applies to just about everything. Likely you wear 20% of the clothes in your closet 80% of the time, and I bet that only 20% of your company’s data is active 80% of the time.
Even though you may have spent a small fortune of your company’s money on a storage array, 80% of that array goes mostly unused. While that kind of statistic is expensive to hear, there is a solution – automated storage tiering.