Vendor revenue from sales of infrastructure products -- server, storage, and Ethernet switch -- for cloud IT grew by 45.5 percent year-over-year in the first quarter of 2018 (1Q18), reaching $12.9 billion according to the latest worldwide market study by International Data Corporation (IDC). IDC also raised its forecast for total spending on cloud IT infrastructure in 2018 to $57.2 billion with year-over-year growth of 21.3 percent. Let's consider the key trends that are driving this phenomena. What really matters most, going forward? Cloud Infrastructure Market Development Public cloud infrastructure quarterly revenue has more than doubled in the past three years to $9 billion in 1Q18, growing 55.8 percent year-over -year. Private cloud revenue reached $3.9 billion for an annual increase of 26.5 percent. The combined public and private cloud revenues now represent 46.1 percent of the total worldwide IT infrastructure spending, up from 41.8 percent a year ago. Traditional (
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