Memory Controller Forecasted Temperature Media Management
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Solution Overview
Problem
Current memory systems perform unnecessary memory management operations due to associating all memory devices with a wide reliability specification, leading to inefficient performance, as they apply the same operations across all devices regardless of actual temperature ranges, resulting in wasted resources and reduced efficiency.
Innovation Solution
A memory controller that determines the current and forecasted temperatures to tailor media management operations specifically for each group of memory components, selecting operations based on the temperature range difference, thereby optimizing performance without sacrificing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If memory systems apply the same media management operations to all memory devices based on wide reliability specifications, then reliability is ensured, but performance efficiency deteriorates due to unnecessary operations
Solution Approach 1:
The patent applies local quality by tailoring media management operations to specific groups of memory devices based on their actual temperature ranges. Instead of applying uniform operations to all devices, the system identifies temperature ranges for each device group and selects appropriate operations (e.g., refresh rates, scan frequencies) matched to those thermal conditions, thereby optimizing both reliability and efficiency for each local group.
Solution Approach 2:
The system changes operational parameters dynamically based on temperature conditions. By monitoring temperature ranges and using forecasted temperature data, the memory controller adjusts parameters such as media management operation frequency, refresh intervals, and scan rates to match actual thermal conditions, eliminating unnecessary operations in stable temperature environments while maintaining reliability where needed.
2Reliability
If memory systems perform media management operations based on worst-case temperature ranges, then reliability is maintained, but energy consumption increases due to unnecessary operations
Solution Approach 1:
The patent applies local quality by tailoring media management operations to specific groups of memory devices based on their actual temperature ranges. Instead of applying uniform operations to all devices, the system identifies temperature ranges for each device group and selects appropriate operations (e.g., refresh rates, scan frequencies) matched to those thermal conditions, thereby optimizing both reliability and efficiency for each local group.
Solution Approach 2:
The system performs preliminary actions by using forecasted temperature data to anticipate future temperature conditions. This allows the memory controller to pre-adjust media management operations before temperature changes occur, ensuring reliability is maintained during temperature transitions while avoiding unnecessary energy-consuming operations during stable periods.
3Productivity
If memory systems use forecasted temperature data to select media management operations, then operational efficiency improves, but system complexity increases
Solution Approach 1:
The system performs preliminary actions by using forecasted temperature data to anticipate future temperature conditions. This allows the memory controller to pre-adjust media management operations before temperature changes occur, ensuring reliability is maintained during temperature transitions while avoiding unnecessary energy-consuming operations during stable periods.
Solution Approach 2:
The patent implements feedback mechanisms where the memory controller continuously monitors actual temperature data and compares it with forecasted values. This feedback loop allows the system to adjust operations based on actual thermal conditions, validating forecast accuracy and making real-time corrections when necessary, thereby maintaining efficiency without excessive complexity.
Data Source
AI summary
Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to provide adaptive media management based on forecasted temperatures. The controller determines, at a current time, a first temperature of an environment associated with a host of a memory sub-system. The controller forecasts, at the current time, a second temperature that the host will be exposed to at a future time and computes, at the current time, a temperature range based on a difference between the first temperature and the second temperature. The controller selects, for an individual group of memory components, an individual media management operation from a plurality of media management operations based on the computed temperature range and performs the individual media management operation on the individual group of memory components.