Abstract: The present disclosure provides a system and method for dynamically adjusting maximum fan duties in a server system. In accordance with one aspect of the present disclosure, a computer-implemented method for dynamically adjusting maximum fan duties in the server system, comprises: powering on the server system; receiving, from BIOS, bus interface information of a system board of the server system; determining that there is no rotation-vibration issues (RVI) sensitive device directly connected to the system board; and setting a first maximum fan duty for one or more cooling fans of the server system.

Abstract: A circuit card assembly includes a circuit card, a plurality of components disposed on a first surface of the circuit card in a shadow arrangement, and a plurality of air-cooled heat sink structures disposed on each of the components. Each of the plurality of heat sink structures comprises a plurality of impedance zones arranged in series substantially perpendicular to the airflow path, where the plurality of impedance zones comprise a first impedance zone having a first air impedance, and a second impedance zone having a second air impedance less than the first air impedance. Further, the plurality of zones in the plurality of heat sink structures are aligned so that the first impedance zone in one of the plurality of heat sink structures does not overlap with the first impedance zone in another of the plurality of heat sink structures, relative to the airflow path.

Abstract: A circuit card assembly includes a circuit card having front and back ends, substantially parallel longitudinal edges between the front and back ends, and a bus connector extending from one of the longitudinal edges. The circuit card assembly includes a bracket structure providing a mounting surface, the mounting surface comprising a bracket for engaging with a plurality of adjacent ones of a plurality of bracket slots with openings at a fixed pitch. The circuit card assembly includes a connector assembly at the surface of said circuit card at the first end, with at least a first input/output (I/O) connector, and a second I/O connector in a stacked arrangement with respect to the surface of said circuit card, where the first I/O connector and the second I/O connector extend through the bracket and are separated by the fixed pitch.

Abstract: Systems, methods and computer-readable media for reducing upstream preheat for high-density hard disk drive storage. A system can include first and second rows of storage devices installed in a storage rack, the first and second rows having a first distance between consecutive storage devices. The second row can be located behind the first row and farther away from a source of an airflow than the first row. The system can monitor a temperature associated with the second row and when the temperature rises above a threshold, the system can remove a storage device from the first row. The system can then adjust placement within the first row such that the remaining devices have a second, larger distance between each other to increase airflow to storage devices in the second row and reduce system impedance.

Abstract: The present technology provides a system for supplying fresh air to downstream components. The system comprises a housing with a first end and a second end, a first plurality of partitions disposed in the housing, and a second plurality of partitions disposed in the housing. The housing comprises a base portion and first and second opposing sidewalls extending from the first end to the second end. Each of the first plurality of partitions includes at least one first ventilation opening associated with each of the plurality of compartments. Each one of the second plurality of partitions comprises at least one partition duct extending through the plurality of partition rows and at least one second ventilation opening connecting the at least one partition duct to associated ones of the plurality of compartments.

Abstract: The present technology provides a system for supplying fresh air to downstream components. The system comprises a housing with a first end and a second end, a first plurality of partitions disposed in the housing, and a second plurality of partitions disposed in the housing. The housing comprises a base portion and first and second opposing sidewalls extending from the first end to the second end. Each of the first plurality of partitions includes at least one first ventilation opening associated with each of the plurality of compartments. Each one of the second plurality of partitions comprises at least one partition duct extending through the plurality of partition rows and at least one second ventilation opening connecting the at least one partition duct to associated ones of the plurality of compartments.

Abstract: Systems, methods and computer-readable media for reducing upstream preheat for high-density hard disk drive storage. A system can include first and second rows of storage devices installed in a storage rack, the first and second rows having a first distance between consecutive storage devices. The second row can be located behind the first row and farther away from a source of an airflow than the first row. The system can monitor a temperature associated with the second row and when the temperature rises above a threshold, the system can remove a storage device from the first row. The system can then adjust placement within the first row such that the remaining devices have a second, larger distance between each other to increase airflow to storage devices in the second row and reduce system impedance.