Linked Memory Cell Recovery for Inaccessible SSD Data
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Solution Overview
Problem
Conventional datacenter redundancy methods, such as backup storages across different locations, are computationally expensive and require significant network bandwidth, failing to efficiently prevent data loss when both primary and backup systems are compromised.
Innovation Solution
Implementing a local, software-based solution within a computer memory assembly by sequentially linking memory cells, using a miniscule special address location and metadata to recover lost data without network bandwidth consumption, employing XOR-based algorithms for data reconstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If backup storage across different datacenter locations is implemented, then data loss prevention is improved, but computational cost and network bandwidth consumption increase significantly
Solution Approach 1:
The patent segments the backup storage function into two parts: (1) a primary backup memory cell within the same memory assembly that stores critical reference data, and (2) optional secondary backup locations. This segmentation allows the system to maintain data loss prevention capabilities while avoiding the high computational overhead of cross-datacenter backups for all operations.
Solution Approach 2:
The patent implements preliminary action by having the first memory cell pre-store reference data (such as parity information or metadata) about the second memory cell before any data loss event occurs. This pre-positioned reference data enables immediate local recovery operations without requiring expensive post-facto computational analysis or network transfers.
2Reliability
If cross-datacenter backup operations are performed, then data recovery capability is improved, but network bandwidth consumption and operational time increase
Solution Approach 1:
The patent merges the backup and recovery functions into a single local memory assembly by placing the first memory cell (containing reference data) in close proximity to the second memory cell (containing primary data). This merging eliminates the need for time-consuming network transfers during both backup and recovery operations, reducing operational time while maintaining data recovery capability.
3Reliability
If sequential linking of memory cells with special address locations is implemented, then data recovery from inaccessible cells is improved, but device complexity increases
Solution Approach 1:
The patent uses copying by creating a simplified reference copy of the second memory cell's data characteristics (such as parity bits or metadata) and storing it in the first memory cell. This reference copy enables recovery operations without requiring complex real-time analysis of the original data, thus improving data recovery capability while keeping the device structure relatively simple.
Data Source
AI summary
Aspects of the embodiments disclosed herein include employing data stored on a first memory cell to recover lost data that cannot be retrieved from a second memory cell, for example, due to data loss or damage to the second memory cell. In one embodiment, the first memory cell and the second memory cell are part of the same computer memory assembly, such as the same SSD, and are directly linked to each other. In one embodiment, the first memory cell stores, among other things, a first special address location that references a location of the second memory cell and metadata of the second memory cell. In one embodiment, the first special address location is used to retrieve lost data from the second memory cell, thereby providing a computationally inexpensive technique for recovering lost data without the need for performing traditional computationally expensive backup operations across datacenters.