Hard Disk Cooling Control with Grouped Polling and Airflow Zoning
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Solution Overview
Problem
Existing hard disk heat dissipation systems in storage servers face inefficiencies due to long polling times by the BMC and limited fan speed response, leading to ineffective temperature regulation as the number of hard disks increases.
Innovation Solution
A coordinated control method that groups hard disks by distance from the air source, allocates read/write resources based on this grouping, and employs varying interval polling strategies based on power consumption and variation rates to efficiently acquire and manage temperature values for targeted hard disks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the BMC polls all hard disks to acquire temperature information, then temperature regulation is achieved, but the polling time becomes relatively long and feedback is delayed
Solution Approach 1:
The patent divides hard disks into multiple groups based on their spatial location (e.g., front/rear, left/right sides) and implements segmented polling strategies. Different polling intervals are applied to different groups, with high-priority groups polled more frequently and low-priority groups polled less frequently. This segmentation resolves the contradiction by maintaining comprehensive temperature monitoring coverage while reducing the total polling time through differential polling intervals.
2Temperature
If the fan rotation speed is regulated based on temperature information, then heat dissipation control is achieved, but the fan response is limited by its inherent physical characteristics resulting in latency
Solution Approach 1:
The patent implements preliminary action by pre-positioning multiple fans at different locations within the storage server, each responsible for specific hard disk groups. When temperature thresholds are exceeded, the corresponding pre-positioned fans are activated immediately without waiting for mechanical reconfiguration. This preliminary positioning resolves the contradiction by enabling faster thermal response through pre-deployed cooling resources.
Solution Approach 2:
The patent implements multi-level feedback mechanisms including real-time temperature monitoring of individual hard disks, dynamic adjustment of polling intervals based on temperature trends, and continuous feedback loops between temperature sensors and fan control systems. This feedback system resolves the contradiction by enabling adaptive temperature regulation that responds more quickly to thermal changes through continuous monitoring and dynamic control adjustments.
3Quantity of substance
If the number of hard drives in servers increases to improve data storage capacity, then storage capacity is improved, but overall power consumption rises and heat dissipation becomes more difficult
Solution Approach 1:
The patent applies local quality by implementing location-based resource allocation and differential cooling strategies. Hard disks are categorized into different thermal zones, and cooling resources are allocated locally to specific zones rather than uniformly across all drives. This resolves the contradiction by enabling efficient heat dissipation for high-density storage configurations through localized thermal management that addresses hot spots without requiring proportional increases in overall power consumption.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting fan rotation speeds, polling intervals, and resource allocation based on real-time temperature and power consumption parameters. The system transitions from static to dynamic parameter control, resolving the contradiction by optimizing the balance between storage capacity utilization and power consumption through adaptive parameter adjustment rather than fixed configurations.
Data Source
AI summary
The present application relates to a coordinated control method and system for hard disk heat dissipation. The method includes: grouping hard disks according to a distance from the hard disks to an air source, and allocating read or write resources to the grouped hard disks, to enable the hard disks to perform read or write operations according to respective allocated read or write resources; acquiring a real-time power consumption value and a power consumption reference value of the hard disks performing the read or write operations, and determining a numerical relationship between the real-time power consumption value and the power consumption reference value of the hard disks; determining a corresponding interval polling strategy according to the numerical relationship to acquire a temperature value of a target hard disk; and performing coordinated control on hard disk heat dissipation according to the temperature value of the target hard disk.