In an example analysis using a 17 KW rack, a drop in CFM by 10% could result in capital savings (CRAC costs of $257/rack) and an annual operational savings of $93 per rack based on the typical energy cost and data center efficiencies assumed.A reduction in CFM also can be monetized on a dollar/CFM basis. Using the real-time airflow telemetry, a datacenter can create a good balance of airflow delivery vs. airflow demand at the server. In either case, we allow customization of this exhaust temperature via iDRAC interfaces. Components in the hot aisle (PDUs, cables, network switches) may have exceeded their ambient temperatures.įigure 1 displays the features and its utilities.Technicians don’t like the extra heat while working in the hot aisle.Some customers, however, have challenges with high exhaust temperatures in the hot aisle, namely: This could result in lower CRAC capital costs if you can cool more with fewer CRAC units and an operational savings of cooling with less equipment.It is directly proportional to the temperature difference between return air (exhaust) and the cooling coil for a given coil flow rate.The higher the air exhaust temperature going into the HVAC (CRAC units) – the higher capacity they exhibit. PCIe airflow settings: Provides a comprehensive PCIe device cooling view of the server and allows cooling customization of 3rd party cards.īy default, Dell server thermal controls algorithm works to minimize system airflow consumption and maximize exhaust air temperature.Custom PCIe inlet temperature: Choose the right input inlet temperature to match 3rd party device requirements.Exhaust Temperature Control: Specify the temperature limit of the air exiting the server to match your datacenter needs. ![]()
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