Performance Data Shows Variances Between and Within IT Service Areas, says Doran Boroski. Unit cost trends vary significantly across different IT service areas, with costs increasing in some cases. Unix Server costs are decreasing by 18 percent annually, and are declining by 30 percent a year if a measure of processing speed is applied. Storage costs continue to decline rapidly, a trend that is driving storage acquisition strategy. Storage costs can be tiered based on usage type. For example, high-cost disk for transactional data may have a different performance and recovery profile than PC file storage.”]
Source: https://www.csoonline.com/article/2119352/a-look-at-it-cost-trends-mdash-categorically-speaking.html