Compute Node Maintenance With Continuous Cooling Air Channels
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Solution Overview
Problem
Existing data center cooling systems often fail to provide effective air cooling where it is most needed, leading to uneven heat removal and potential server failures due to inadequate airflow distribution, especially in non-uniform rack configurations with varying component densities.
Innovation Solution
The implementation of a computing system with channel-capping elements and air channels between circuit board assemblies, where air is introduced from the bottom and flows through openings in the backplanes to channels between adjacent boards, allowing for continuous cooling even when compute nodes are partially withdrawn for maintenance, and enabling reconfiguration of backplane pitches to optimize airflow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If servers are mounted on a common chassis in rack systems, then space utilization is improved, but when one server fails, all servers on the chassis must be withdrawn for maintenance, causing cooling air loss and potential additional failures
Solution Approach 1:
The patent divides the rack system into independent server modules that can be individually accessed and maintained. Each server or compute node is separated into its own withdrawable unit, allowing maintenance of one server without requiring withdrawal of all servers on a common chassis. This segmentation enables isolated maintenance while preserving cooling airflow to remaining operational servers.
2Temperature
If traditional fan-based cooling systems are used to move air through rack-mounted computer systems, then heat removal is achieved, but air distribution is uneven with some areas receiving more cooling air than others, leading to potential component failures
Solution Approach 1:
The patent implements localized cooling channels and airflow paths that deliver cooling air directly to specific hot spots and component areas that require it most. The cooling system is designed with targeted airflow distribution rather than uniform distribution, ensuring that areas with higher component density or greater heat generation receive adequate cooling air supply.
3Ease of repair
If compute nodes are completely withdrawn from the rack for maintenance, then defective components can be replaced or repaired, but cooling air to all compute nodes is lost, impairing performance or causing additional failures
Solution Approach 1:
The rack system is designed with independently withdrawable compute nodes or server modules. When one compute node needs maintenance, only that specific module is withdrawn while other compute nodes remain in place and continue to receive cooling air. This modular segmentation allows isolated maintenance access without compromising the operational status and cooling of remaining compute nodes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution ensures consistent and efficient heat removal from components, reduces the risk of server failures by maintaining airflow during maintenance operations, and allows for flexible reconfiguration to accommodate different compute node arrangements, enhancing overall system reliability and operational efficiency.
Implementation Method 1
air is moved through air channels between adjacent circuit boards in the computing system
Implementation Method 2
fans are used to move air through rack-mounted computer systems to remove heat from components
Data Source
AI summary
A computing system includes a chassis, one or more backplanes coupled to the chassis. Computing devices are coupled to the one or more backplanes. The one or more backplanes include backplane openings that allow air to pass from one side of the backplane to the other side of the backplane. Air channels are formed by adjacent circuit board assemblies of the computing devices and the one or more backplanes. Channel capping elements at least partially close the air channels.