SSD Fan Control Using Address-to-Slot Temperature Mapping

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Solution Overview

Problem

Existing information processing apparatuses face challenges in accurately identifying and managing the temperature of solid-state storage devices (SSDs) due to issues with logical address inconsistencies and power-saving modes, leading to inefficient heat dissipation and increased power consumption.

Innovation Solution

The apparatus employs a processor to acquire identification and location information of SSDs, configuring a reference table associating logical addresses with location information, and controls heat dissipation fans based on temperature data using this table, ensuring precise SSD temperature management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If the self-monitoring and reporting technology function is used to monitor SSD temperature, then temperature monitoring capability is provided, but accurate identification of specific SSDs for heat dissipation control becomes difficult

Engineering Contradiction:
ImproveSSD temperature measurementVSAvoidSSD location information
Core Design Contradiction:
Measurement precisionVSLoss of information

Solution Approach 1:

The patent segments the temperature monitoring and control system by SSD location. Each SSD slot is assigned a unique logical address, and the system maintains a mapping table that associates logical addresses with physical slot positions. This segmentation allows the controller to identify which specific SSD slot requires heat dissipation control by matching the logical address from temperature data with the corresponding physical location in the mapping table.

Inventive Principle:
Principle #1Segmentation

2Temperature

If all cooling fans are operated to prioritize thermal protection of SSDs, then SSD temperature is controlled, but power consumption and noise level increase

Engineering Contradiction:
ImproveSSD temperature controlVSAvoidcooling fan power consumption
Core Design Contradiction:
TemperatureVSUse of energy by moving object

Solution Approach 1:

The patent applies local quality by controlling heat dissipation fans individually based on the thermal conditions of specific SSD slots. Instead of operating all fans uniformly, the controller selectively activates only the fans corresponding to SSD slots that require cooling, as identified through the logical address to physical location mapping. This localized approach reduces unnecessary fan operation, thereby lowering overall power consumption and noise levels while maintaining effective thermal protection where needed.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If logical address is assigned using ARP each time host system or SSD is started up, then address resolution is achieved, but SSD identification consistency is lost

Engineering Contradiction:
Improveaddress resolution flexibilityVSAvoidSSD identification consistency
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The patent implements preliminary action by pre-establishing a mapping table that associates logical addresses with physical SSD slot positions before the system operates. When temperature data is received with a logical address, the controller consults this pre-configured mapping table to immediately determine the corresponding physical slot. This preliminary preparation ensures that even though logical addresses may be reassigned during startup, the system can consistently identify the correct physical SSD slot for heat dissipation control by referencing the established mapping relationship.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS12613787B2Information processing apparatus and control method utilizing a reference table to control a heat dissipation fan based on temperature data
Publication Date: 2026.04.28 LENOVO (SINGAPORE) PTE LTD
  • US12613787B2 patent drawing
  • US12613787B2 patent drawing
  • US12613787B2 patent drawing

AI summary

An information processing apparatus includes: a processor; a controller; a solid-state storage device; and a heat dissipation fan. The processor and the controller are connected with the solid-state storage device by using a bus, and the solid-state storage device is installed at a position corresponding to the heat dissipation fan. The processor acquires identification information of the solid-state storage device in association with location information indicating the position of the solid-state storage device, and the controller acquires identification information and a logical address of the solid-state storage device in advance, configures a reference table by associating location information corresponding to an identification number with a logical address corresponding to the identification information.