IT systems can scale vertically, horizontally, and sometimes both. In broad terms, vertical scaling, or scale-up, entails installing more powerful systems or upgrading to more powerful components.

Why does an upright box of Kleenex cost more than a horizontal one? When you buy an upright, or cubed, box of tissues, you might get less bang for your buck than if you had purchased a horizontal ...

While hyperconvergence and scale-out architectures have offered horizontal scaling for primary storage, it is now time to look at the benefits of horizontal scaling for secondary storage applications ...