NVDIMM Temperature Prediction for Backup Reliability
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Solution Overview
Problem
Non-volatile dual in-line memory modules (NVDIMMs) face challenges in managing high temperatures during backup, restore, and erase operations, which can lead to operational failures due to resource overburden and potential data errors when sampling temperature data during these critical processes.
Innovation Solution
The implementation of a temperature prediction system within the NVDIMM that derives a temperature profile by correlating temperatures between the controller and non-volatile memory, using real-time data to anticipate potential failures and initiate remedial actions such as cooling or rescheduling operations, thereby minimizing failures during data storage and recovery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If temperature data sampling is performed during backup, restore, and erase operations, then temperature monitoring accuracy is improved, but operational reliability deteriorates due to resource overburden and potential data errors
Solution Approach 1:
The patent implements temperature mitigation actions before critical operations (backup, restore, erase) are executed. The system predicts temperature increases based on operation type and duration, then proactively applies cooling or delays the operation to prevent temperature-related failures, rather than reacting after temperature thresholds are exceeded during operations
Solution Approach 2:
The patent divides temperature management into separate phases: pre-operation temperature assessment, during-operation monitoring with reduced sampling, and post-operation evaluation. This segmentation allows intensive monitoring only when necessary while reducing resource burden during critical operations
2Temperature
If intensive temperature monitoring is implemented during critical operations, then temperature control is improved, but resource usage increases causing operational failures
Solution Approach 1:
The patent applies partial monitoring during critical operations by reducing temperature sampling frequency or suspending non-essential temperature checks during backup, restore, and erase operations. This partial action maintains sufficient temperature control while preserving system resources for critical data operations
Solution Approach 2:
The patent dynamically adjusts temperature monitoring parameters (sampling rate, threshold levels, measurement intensity) based on the operational state. During critical operations, monitoring parameters are modified to reduce resource consumption while maintaining adequate temperature awareness through predictive modeling
3Adaptability or versatility
If more circuitry is added to handle backup and restore operations, then functionality is improved, but device complexity increases making design more challenging
Solution Approach 1:
The patent implements a unified temperature management controller that handles multiple functions: temperature sensing, predictive modeling, cooling control, and operation scheduling. This single multi-functional component replaces what would otherwise require separate dedicated circuits for each temperature management task, reducing overall device complexity while maintaining comprehensive functionality
Solution Approach 2:
The patent combines temperature monitoring, prediction algorithms, and mitigation control into an integrated temperature management system. By merging these previously separate functions into a unified controller, the design complexity is reduced while maintaining the ability to perform backup, restore, and erase operations with appropriate temperature management
Data Source
AI summary
Methods, apparatuses, and systems related to a memory device are described. A controller may be configured to predict a temperature of a memory based on a real-time temperature of the controller. Based on the predicted temperature of the memory, the controller may execute a remedial action to reduce an actual temperature of the memory for executing an upcoming operation.