Storage Power Control via Access Source Notification
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Solution Overview
Problem
Information processing apparatuses face increased storage activation frequency due to frequent access requests, leading to reduced storage lifespan, as they stop power supply only after data reading or writing is completed, resulting in frequent reactivation.
Innovation Solution
Implementing a power supply control mechanism that activates power to the storage only when an access request is received and deactivates it post-access, while counting frequent access requests from each source and notifying the source with the highest count when a predetermined threshold is exceeded, allowing for targeted power management and reduced storage wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If power supply to the storage portion is stopped after data reading or writing is completed, then power consumption is reduced, but the storage portion is activated frequently when access requests are received, leading to reduced storage lifespan
Solution Approach 1:
The system performs preliminary actions by notifying the transmission source of frequent access requests before significant storage wear occurs. The notification processing portion identifies and notifies sources generating excessive access requests, allowing them to adjust their behavior and prevent future storage activations, thus extending storage lifespan while maintaining power-saving operation
2Speed
If the storage portion is activated each time an access request is received, then data access responsiveness is improved, but the number of storage activations increases, reducing storage lifespan
Solution Approach 1:
The system implements feedback by counting access requests from each transmission source and notifying them when their access frequency exceeds a threshold. This feedback loop allows transmission sources to adjust their access patterns, reducing the number of storage activations while maintaining necessary data access responsiveness through selective notification rather than blanket access restrictions
Data Source
AI summary
An information processing apparatus includes a power supply control portion, and a notification processing portion. The power supply control portion executes power supply control that includes: a first step of supplying power to a non-volatile storage portion in a case where an access request to access the storage portion is received while power supply to the storage portion is stopped; and a second step of stopping power supply to the storage portion after an access process of accessing the storage portion in response to the access request is completed. The notification processing portion notifies of a transmission source of access requests with the highest number of transmissions of the access requests received while power supply to the storage portion is stopped among the transmission sources of access requests when the number of executions of the power supply control exceeds a predetermined reference number of times.