Storage Controller Energy Feedback and Report Generation
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Solution Overview
Problem
Embedded data storage devices face challenges in accurately calculating energy consumption due to incomplete information from data access, which includes both data and control overheads varying based on data patterns, leading to inefficiencies in energy usage.
Innovation Solution
A data storage device with a controller that maintains associations between logical addresses and application identifiers, generates energy reports identifying power implications, and provides feedback to the host on optimal access sizes and energy requirements, considering data patterns and overheads.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the host calculates energy impact based only on data access information, then the calculation is simple, but the energy measurement is incomplete and inaccurate
Solution Approach 1:
The patent introduces an intermediary component (energy monitoring module or controller) that acts as a mediator between the storage device and host. This intermediary collects comprehensive energy consumption data from various internal components (memory, controller, interfaces) and processes it to generate accurate energy reports, resolving the contradiction by providing complete measurements without requiring complex host-side calculations
Solution Approach 2:
The patent implements feedback mechanisms where energy consumption data is continuously monitored, reported to the host, and used to optimize future storage operations. The controller provides feedback loops that adjust operations based on energy metrics, enabling accurate measurement and continuous improvement of energy efficiency
2Measurement precision
If the storage device tracks detailed power implications for each command, then energy measurement accuracy improves, but device complexity increases
Solution Approach 1:
The patent segments the energy monitoring function into distinct modular components within the controller, such as separate modules for tracking data access power, control overhead power, and background operation power. This segmentation allows accurate measurement of each component's power consumption while maintaining manageable controller complexity through modular design
Solution Approach 2:
The controller is designed with multi-functional capabilities that allow it to perform both traditional storage management functions and energy monitoring functions using the same hardware resources. The controller leverages existing components (memory, processing units, interfaces) to serve dual purposes, reducing the need for additional dedicated hardware and minimizing complexity increase
3Reliability
If background operations are performed to maintain storage efficiency, then storage reliability improves, but energy consumption increases
Solution Approach 1:
The patent implements periodic action by scheduling background operations (such as garbage collection, wear leveling, and data alignment) at optimal intervals rather than continuously. The energy monitoring system tracks when these operations are most beneficial and schedules them accordingly, maintaining storage reliability while minimizing unnecessary energy consumption from frequent operations
Solution Approach 2:
The patent changes operational parameters dynamically based on energy conditions and storage state. The controller adjusts background operation frequency, intensity, and timing based on monitored energy consumption patterns and storage health metrics, optimizing the balance between maintaining reliability and reducing energy usage by adapting parameters to current system conditions
Data Source
AI summary
A data storage device and method for energy feedback and report generation are provided. In one embodiment, a data storage device is provided comprising a memory and a controller. The controller is configured to maintain an association between logical addresses and application identifiers of applications on a host; determine power implications associated with a command to access a logical address of the memory; generate a report on the power implications, wherein the report identifies an application identifier associated with the logical address; and provide the report to the host. Other embodiments are possible, and each of the embodiments can be used alone or together in combination.