Dispersed Storage Registry Distribution via Segmentation
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Solution Overview
Problem
Current dispersed storage networks face challenges in efficiently managing and retrieving large datasets across distributed systems, particularly in ensuring data integrity and security, and in effectively processing tasks on stored data without loss or corruption.
Innovation Solution
A distributed computing system that employs dispersed error encoding and decoding techniques, allowing data to be segmented, securely stored across multiple geographically dispersed locations, and reconstructed as needed, while also enabling distributed task processing by partitioning tasks and executing them across multiple execution units for efficient data management and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is stored in a centralized location, then data retrieval is simple and fast, but the system is vulnerable to failures and lacks resilience
Solution Approach 1:
The patent segments data into multiple slices and distributes them across different storage locations. Each slice is independently stored, allowing the system to tolerate failures at any single location while maintaining overall data availability and integrity.
Solution Approach 2:
The patent implements a nested structure where registry information containing metadata about data slices is embedded within the dispersed storage network architecture. This nested registry enables tracking and management of distributed data without requiring a separate centralized control system.
2Reliability
If data is replicated across multiple locations for redundancy, then system reliability improves, but storage efficiency decreases due to redundant copies
Solution Approach 1:
The patent uses error correction codes to create mathematical copies of data slices rather than physical duplicates. These encoded slices can be reconstructed to recover the original data without requiring identical redundant copies, thereby improving storage efficiency while maintaining reliability.
Solution Approach 2:
The patent transforms data into different parameter representations through encoding and slicing. The original data is converted into multiple encoded slices with different parameters, allowing flexible reconstruction without needing identical redundant storage.
3Ease of operation
If registry information is centralized for easy management, then system operation is simplified, but the system becomes a single point of failure
Solution Approach 1:
The registry information itself is segmented and distributed across multiple locations within the storage network. This segmentation allows the registry to be queried and updated without creating a single point of failure, while still maintaining manageable access patterns through the distributed architecture.
Solution Approach 2:
The distributed registry slices serve multiple functions: they store metadata, enable data retrieval, support error correction, and provide system management capabilities all within the same distributed structure, eliminating the need for separate centralized management systems.
4Reliability
If data is dispersed across multiple locations for security and reliability, then system resilience improves, but data retrieval complexity increases
Solution Approach 1:
The patent introduces intermediary components including distributed file system interfaces and error correction decoding mechanisms that automatically manage the complexity of retrieving dispersed data. These intermediaries handle the coordination of fetching slices from multiple locations and reconstructing the original data transparently to users.
Solution Approach 2:
The distributed storage system implements self-service mechanisms where the registry information automatically tracks the location of data slices and coordinates their retrieval. The system autonomously manages the complexity of data reconstruction without requiring external intervention or complex user-side processing.
Data Source
AI summary
A method begins by a processing module of a dispersed storage network (DSN) generating a signed registry information packet, dispersed storage error encoding the signed registry information packet to produce a set of encoded registry information slices, and generating a set of signed encoded registry information slice packets for storage in storage units of the DSN. The method continues with the processing module retrieving a decode threshold number of signed encoded registry information slice packets. For each of the decode threshold number of signed encoded registry information slice packets, the method continues with the processing module recovering an encoded registry information slice. The method continues with the processing module dispersed storage error decoding a decode threshold number of recovered encoded registry information slices to reproduce the signed registry information packet, validating the signed registry information packet, and extracting registry information when the signed registry information packet is valid.