Storage Device Power Control Through Dynamic Logical Unit Scaling
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Solution Overview
Problem
Existing storage devices, particularly SSDs, lack a method to dynamically adjust power consumption during read/write operations, leading to potential abnormal operations due to excessive power consumption.
Innovation Solution
A method that involves acquiring current power consumption, comparing it with a target power consumption level to adjust an initial upper limit value, and adjusting the number of logical units performing read/write tasks to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of logical units performing read/write tasks is increased to improve data processing capacity, then productivity is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic adjustment of the number of logical units performing read/write tasks based on real-time power consumption monitoring. The controller dynamically scales the number of active logical units according to power budget constraints, enabling the system to adapt between performance and power consumption states rather than using a fixed configuration.
Solution Approach 2:
The patent changes the operational parameters of the storage device by adjusting the number of active logical units. This parameter adjustment allows the system to operate within power consumption limits while maintaining optimal data processing capacity, transforming a static system into one that can flexibly respond to power availability.
2Use of energy by moving object
If power consumption is reduced by decreasing the number of logical units, then energy usage is improved, but data processing capacity deteriorates
Solution Approach 1:
The patent applies partial action by activating only the necessary number of logical units required to meet current workload demands within power constraints. Instead of keeping all logical units active or completely shutting down, the system activates a partial set that is sufficient for current needs, thereby optimizing the balance between power consumption and processing capacity.
Solution Approach 2:
The system dynamically adjusts the number of active logical units based on real-time conditions, allowing flexible transition between different operational states. This dynamic approach enables the system to maintain adequate processing capacity while consuming less power when full performance is not required.
3Device complexity
If the initial upper limit value is not adjusted based on target power consumption, then device complexity is reduced, but the reliability deteriorates due to abnormal operations
Solution Approach 1:
The patent implements a feedback mechanism where the controller continuously monitors power consumption and compares it against target power consumption levels. Based on this feedback, the controller adjusts the number of active logical units to ensure operation within safe power limits, preventing abnormal operations and enhancing system reliability.
Solution Approach 2:
The storage device performs self-regulation of its power consumption by automatically adjusting the number of active logical units based on monitored power levels. This self-service mechanism eliminates the need for external intervention to prevent over-power conditions, improving reliability while maintaining relatively simple device architecture.
Data Source
AI summary
The present application relates to the field of storage devices, in particular to a method and apparatus for adjusting power consumption, a storage device, and a non-transitory computer readable storage medium. The method includes: acquiring current power consumption of the storage device (S11); comparing target power consumption of the storage device at a current power consumption level with the current power consumption to adjust an initial upper limit value corresponding to the storage device, so as to obtain an adjusted target upper limit value (S12); adjusting a number of logical units performing a read and write task in the storage device according to the target upper limit value, so as to adjust the current power consumption of the storage device (S13). According to the method, the power consumption of the storage device is adjusted.