04-04-2023 дата публикации
Номер: CN115904796A
Принадлежит:
The invention provides a long-chain erasure code encoding and decoding method and system and a readable storage medium. The method comprises the following steps: S1, minimizing single-error cross-cabinet recovery cost through a quantization mode, selecting a proper data grouping strategy and a data placement strategy, and determining encoding parameters; s2, coding each dimension of the three-dimensional coding in sequence; and S3, recovering the data by using a decoding algorithm, preferentially performing verification recovery by using low-dimensional coding, and if recovery fails, calling high-dimensional coding to perform verification recovery on each dimension. According to the method, quantitative analysis is carried out on the single-error cross-cabinet recovery cost, and cabinet-level strip placement is carried out based on the analysis result, so that the strip crosses fewer cabinets; meanwhile, in the decoding stage of the long-chain erasure codes, low-dimensional codes are preferentially ...
Подробнее