EFFICIENT, SECURE, STORAGE OF MEANINGFUL CONTENT AS PART OF A DSN MEMORY

摘要

A method for execution by a dispersed storage network (DSN), the method begins by determining to form a storage device set from locally stored data and partitioning the locally stored data to produce a plurality of data blocks and obtaining error coding information and generating a zero-information gain (ZIG) partial slice based on the error coding information and outputting a corresponding ZIG partial slice to a redundancy error information storing device. The method continues by receiving a decode threshold number of corresponding ZIG partial slices from a decode threshold number of data storage devices, decoding the decode threshold number of corresponding ZIG partial slices to produce the error coding information block and storing the error coding information block and, for subsequent error recovery of a missing data block, obtaining a decode threshold number of corresponding data blocks and error information blocks to reproduce the missing data block