Modular Data Storage Cooling with Shared Air Movers
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Solution Overview
Problem
Conventional data storage systems face performance degradation due to excessive acoustic energy generated by air movers, which affects the ability of hard disk drives to read and write data effectively, especially as storage density increases and finer head positioning is required.
Innovation Solution
The system employs fewer, larger air movers shared among multiple sub-enclosures, positioned farther away from data storage devices and combined with acoustic baffles and absorptive materials to reduce acoustic energy impact, along with a modular design that includes a shared controller for data shuttles and ingest units to optimize cooling and data transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If multiple small air movers are used in each sub-enclosure, then cooling coverage is improved, but acoustic energy generation increases
Solution Approach 1:
The patent consolidates multiple small air movers into fewer, larger air movers that serve multiple sub-enclosures. Specifically, a first air mover cools a first sub-enclosure and a second air mover cools a second sub-enclosure, reducing the total number of air movers while maintaining cooling coverage. This merging reduces acoustic energy generation from multiple sources to fewer sources.
Solution Approach 2:
The air movers are designed to serve multiple functions and multiple sub-enclosures. Each air mover is positioned to cool multiple sub-enclosures simultaneously, making the cooling system more universal and efficient. This multi-functionality reduces the total number of air movers needed, thereby reducing acoustic energy.
2Quantity of substance
If storage density is increased with finer head positioning requirements, then data storage capacity is improved, but sensitivity to acoustic energy increases
Solution Approach 1:
The patent extracts and removes acoustic baffles from the enclosure to absorb and reduce acoustic energy generated by air movers. These baffles are specifically positioned to protect data storage devices with finer head positioning requirements from acoustic interference, enabling high-density storage without performance degradation.
Solution Approach 2:
Acoustic baffles and absorptive materials are introduced as intermediary elements between the air movers and the data storage devices. These intermediaries absorb and dampen acoustic energy before it reaches the sensitive hard disk drives, protecting them from acoustic interference while allowing the cooling system to operate effectively.
3Temperature
If more air movers are deployed to cool multiple sub-enclosures, then cooling effectiveness is improved, but power consumption increases
Solution Approach 1:
The patent merges the cooling function of multiple air movers into fewer, larger air movers. Each air mover is designed to cool multiple sub-enclosures, reducing the total number of air movers required. This consolidation maintains cooling effectiveness while reducing power consumption from fewer motor units.
Solution Approach 2:
The patent changes the parameters of the air movers from multiple small units to fewer large units. The larger air movers have optimized blade designs and airflow characteristics that improve cooling efficiency per unit of power consumed, reducing overall power consumption while maintaining or improving cooling effectiveness.
4Temperature
If more air movers are used, then cooling coverage is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple air mover functions into fewer units, simplifying the overall system architecture. Instead of having separate air movers for each sub-enclosure, fewer air movers are strategically positioned to cool multiple sub-enclosures, reducing system complexity while maintaining comprehensive cooling coverage.
Solution Approach 2:
The air movers are designed with universal cooling capability to serve multiple sub-enclosures. This multi-functionality reduces the number of components needed in the system, simplifying installation, maintenance, and overall device complexity while ensuring all sub-enclosures receive adequate cooling.
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 approach reduces acoustic energy exposure to data storage devices, maintaining performance while minimizing power consumption and noise, and lowers costs by using fewer and larger fans and a shared controller architecture.
Implementation Method 1
combined with acoustic baffles and absorptive materials to reduce acoustic energy impact
Implementation Method 2
The system employs fewer, larger air movers shared among multiple sub-enclosures, positioned farther away from data storage devices
Data Source
AI summary
A system includes a data shuttle with rows of data storage devices, which are communicatively coupled to a shared printed circuit board assembly. Each row includes multiple data storage devices. The printed circuit board assembly is configured to communicatively couple to a first controller to enable storing data to the data storage devices and to communicatively coupled to a second controller to enable transferring data from the data storage devices.