Re-Encoding Data in Expanded Storage Pool

The patent segments data into multiple encoded slices that are distributed across different storage units in the DSN. Each slice is independently stored, allowing the system to tolerate failures while maintaining data availability. The segmentation is achieved through error correction coding that divides the original data into multiple redundant pieces.

The patent introduces a DSN controller as an intermediary that manages the complex operations of encoding, distributing, and retrieving data across the dispersed storage network. The controller handles the complexity of coordinate encoding, slice distribution, and reconstruction, shielding users from the underlying system complexity while maintaining high reliability.

The patent applies error correction encoding in advance during the data writing phase, creating redundant encoded slices that are immediately distributed across the DSN. This preliminary action ensures data integrity is built into the storage structure itself, so that when retrieval occurs, the error correction overhead is minimal and processing time is reduced.

The patent uses coordinate encoding that transforms data into a different parameter space where error correction becomes more efficient. By changing the representation of data through mathematical transformation, the system achieves robust error correction with optimized processing requirements during both write and read operations.

The patent implements a dynamic DSN architecture where the encoding parameters and slice distribution can be adaptively adjusted when storage capacity changes. When new storage units are added, the system dynamically re-encodes and redistributes data using updated coordinate systems, allowing seamless capacity expansion without manual intervention or complex static reconfiguration.

The patent creates a universal encoding framework that works regardless of the number or configuration of storage units. The coordinate encoding system is designed to be scalable and adaptable to different DSN topologies, allowing the same fundamental approach to handle both initial data distribution and subsequent expansions without requiring fundamentally different mechanisms.