Partial-Width Server Chassis with Stacked Drives
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Solution Overview
Problem
Existing computing systems face inefficiencies due to wasted space in server chassis, low computing device density in rack systems, and challenges in heat management and maintenance, particularly with standard off-the-shelf hard disk drives.
Innovation Solution
The implementation of partial-width computing devices with horizontally oriented circuit boards and stacked hard disk drives, designed to fit within half-width slots of standard racks, along with a separate power supply unit and efficient air handling systems for heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If standard off-the-shelf hard disk drives are employed in a server chassis whose dimensions conform to another standard, then cost effectiveness is improved, but wasted space in the server chassis increases
Solution Approach 1:
The server chassis is divided into multiple compartments or bays, each capable of independently accommodating standard hard disk drives. This segmentation allows the chassis to efficiently organize and utilize space for standard drives while maintaining the overall custom dimensions of the server chassis, thereby reducing wasted space.
Solution Approach 2:
Standard hard disk drives are nested within custom-designed drive cages or mounting structures that fit precisely into the server chassis. These nested structures maximize the utilization of available space within the chassis while still accommodating the standard drive form factor.
2Adaptability or versatility
If servers are designed to fit into standard rack slots, then rack compatibility is improved, but computing device density in the rack system decreases
Solution Approach 1:
The server chassis incorporates adjustable or reconfigurable mounting mechanisms that allow the server to be positioned at different locations within the rack slot. This dynamic positioning capability enables more flexible packing arrangements, increasing the number of computing devices that can be accommodated in each rack while maintaining standard rack compatibility.
Solution Approach 2:
The invention utilizes vertical stacking or multi-level configurations within the rack, transitioning from a single-plane arrangement to a three-dimensional layout. This dimensional change allows multiple servers to be packed more efficiently within the same rack footprint, thereby increasing computing device density while maintaining rack slot compatibility.
3Quantity of substance
If hard disk drives are stacked vertically to increase storage capacity, then storage density is improved, but heat removal efficiency deteriorates
Solution Approach 1:
The server chassis incorporates localized cooling structures, such as individual cooling fans or heat sinks, for each hard disk drive bay. This local quality approach ensures that each drive receives adequate cooling regardless of its position in the vertical stack, maintaining heat removal efficiency while enabling high storage density through vertical stacking.
Solution Approach 2:
A central cooling system or heat management intermediary is introduced between the vertically stacked hard disk drives and the surrounding environment. This intermediary component facilitates efficient heat transfer from the densely stacked drives to the cooling system, resolving the conflict between storage density and heat removal efficiency.
4Ease of repair
If servers are removed from the rack for hard disk drive replacement, then drive maintenance is improved, but system downtime increases
Solution Approach 1:
The hard disk drive bays are designed as independent, removable modules that can be accessed and serviced without removing the entire server from the rack. This segmentation allows individual drives to be replaced while the server remains installed, eliminating system downtime and facilitating easy maintenance.
Solution Approach 2:
The server chassis incorporates front-accessible drive bays with removable panels or sliding mechanisms that enable users to perform drive maintenance and replacement independently. This self-service capability allows drive replacement without requiring server removal from the rack, thereby reducing maintenance time and system downtime.
Data Source
AI summary
A computing system includes a rack having standard slots for computing devices and computing devices coupled to the rack. One or more of the computing devices includes a chassis, a circuit board assembly in a primarily horizontal orientation, and one or more processors coupled to the circuit board assembly. One or more stacks of hard disk drives are coupled to the chassis. The chassis has a width that is equal to or less than half of the width of one of the standard slots of the rack.