In the past, data centres were big and had to accommodate isolated, single-purpose hardware for every IT function. As a result, organisations had to invest vast sums in multiple hardware units, many of which sat idling the majority of the time, creating an environment of high cost and low efficiency. Here, Annelie Invansoon, Marketing Manager at Recab AB, and Martin Frederiksen, Managing Director of Recab UK, explains how HyperConverged Infrastructures (HCIs) have been transforming data centres.