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Under-sizing server platforms for an environment may lead to mid-life refresh, resulting in significant disruption to business operations, added logistical complexity, and an increase in total cost of ownership. Intel IT developed a quantitative model to assist with server sizing by analyzing the effects of many different factors on Enterprise Resource Planning (ERP) server utilization. The analysis shows that the headroom advantage offered by four-socket servers can increase flexibility and help avoid mid-life refresh in situations where there is greater uncertainty in workload growth forecasts and larger demand peaks. This headroom is also important when targeting longer server refresh cycles of four years or more and when using active-active cluster designs to provide high availability.
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