Remote Metadata Placement for Bounded-Fault Memory Access
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Solution Overview
Problem
Conventional memory devices fail to ensure that metadata is bounded fault compliant, leading to errors propagating across multiple data terminals due to metadata being stored in a single area, which cannot be corrected by existing error correction mechanisms.
Innovation Solution
The memory devices organize metadata storage such that each portion is stored in different, remote locations within the memory array, ensuring that errors are confined to a single data terminal, allowing for bounded fault compliance and effective correction by error correction mechanisms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If metadata is stored in a single area in the memory array, then storage simplicity is improved, but error propagation across multiple data terminals occurs
Solution Approach 1:
The patent divides metadata into multiple portions and stores each portion in different, remote locations within the memory array. Specifically, first metadata is stored in a first area and second metadata is stored in a second area that is remote from the first area. This segmentation prevents errors from propagating across multiple data terminals while maintaining storage organization.
Solution Approach 2:
The patent applies local quality by storing different portions of metadata in different locations with specific properties. Each metadata portion is placed in a location optimized for its specific data terminal association, ensuring that errors remain localized and do not affect other data terminals. This is achieved by storing metadata portions in remote areas that are specifically associated with their respective data terminals.
2Reliability
If metadata portions are stored in remote locations, then error confinement to single data terminal is improved, but storage complexity increases
Solution Approach 1:
The patent segments metadata into distinct portions that are stored in remote locations within the memory array. Each portion is associated with a specific data terminal, ensuring that errors are confined to the local data terminal. This segmentation approach achieves bounded fault compliance while managing storage complexity through systematic organization.
Solution Approach 2:
The patent utilizes the spatial dimension of the memory array by storing metadata portions in remote areas that are physically separated. This dimensional separation ensures that errors in one area do not propagate to other areas, achieving bounded fault compliance. The memory array's spatial structure is leveraged to isolate errors while maintaining organized storage.
Data Source
AI summary
Apparatuses, systems, and methods for bounded fault compliant metadata storage. Memory devices include a first data terminal and a second data terminal. As part of an access operation a first set of data and a first set of metadata may be sent/received across the first terminal and a second set of data and a second set of metadata may be sent/received across the second terminal. The first set of metadata may be stored in a first location and the second set of metadata may be stored in a second location in the memory array, such as a first and second column plane. The two locations may be remote from each other.