High-Density Chassis Rear-Access Hardware Accelerator Cooling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data center chassis configurations that support replaceable hardware accelerators, such as GPUs, require at least 8 RU of space due to cooling constraints, limiting data center density and efficiency.
Innovation Solution
A high-density chassis design that fits within 6 RU, incorporating a 4 RU processing layer with a block of cooling fans directly adjacent to the hardware accelerator sled, allowing for efficient airflow cooling and supporting high-performance computing while enabling easy replacement of hardware accelerators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If traditional chassis configurations with hardware accelerators are used, then cooling requirements are met, but chassis height increases to at least 8 RU
Solution Approach 1:
The patent reorganizes the vertical stacking order of components within the chassis, placing the hardware accelerator sled above the cooling fans rather than below them. This dimensional reconfiguration allows the cooling airflow to move upward through the accelerator sled, enabling effective cooling within a reduced 6 RU chassis height while maintaining thermal management requirements.
2Productivity
If chassis density is increased to fit more chassis per rack, then data center efficiency improves, but cooling capacity for hardware accelerators becomes insufficient
Solution Approach 1:
By inverting the traditional vertical arrangement of cooling components, the patent enables the cooling system to serve multiple accelerator sleds stacked above it, thereby increasing the number of accelerators that can be cooled within the same vertical space and improving data center density without sacrificing cooling capacity.
Solution Approach 2:
The cooling fan assembly is designed to provide cooling for multiple hardware accelerator sleds simultaneously through its positioning and airflow configuration, making the cooling system more versatile and reducing the need for dedicated cooling resources for each accelerator, thus enabling higher density deployments.
3Ease of repair
If hardware accelerators are made replaceable from the rear, then serviceability improves, but access difficulty increases in densely packed racks
Solution Approach 1:
The patent inverts the traditional access approach by enabling rear-side replacement of hardware accelerators. The accelerator sleds are designed with rear-accessible connectors and mechanical interfaces, allowing administrators to remove and replace accelerators from the back of the chassis without needing to access the front, thereby improving serviceability in densely packed rack environments where front access is limited.
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 design increases data center density by allowing more chassis per rack space without specialized cooling, minimizes downtime through easy hardware accelerator replacement, and maintains sufficient cooling for high-performance computing tasks.
Implementation Method 1
a block of cooling fans installed in a rear compartment of the processing layer, wherein the block of cooling fans provide airflow cooling to the I/O modules installed in the front compartment of the processing layer and to the hardware accelerator sled installed in the central compartment of the processing layer
Data Source
AI summary
Systems provide a chassis housing one or more Information Handling Systems (IHSs). A control layer of the chassis includes a power supply for use both in the control layer of the chassis and in a processing layer of the chassis. The control layer also includes a motherboard with CPUs coupled to the processing layer via a PCIe switch fabric. The processing layer includes one or more replaceable I/O modules installed in a front compartment. The processing layer also includes a hardware accelerator sled installed in a central compartment of the processing layer, where the hardware accelerator sled is replaceable via a rear of the processing layer. A block of cooling fans is installed in a rear compartment of the processing layer, where the fans provide airflow cooling to the I/O modules and hardware accelerator sled installed in the processing layer. In this configuration, cooling requirements are met for the chassis.