Recovering data from microslices in a dispersed storage network
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United States of America Patent
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Jan 24, 2017
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app pub date -
Nov 20, 2014
filing date -
Jan 31, 2014
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Abstract
A method begins by a processing module of a dispersed storage network (DSN) identifying a data segment to be retrieved from storage units of the DSN, where the data segment is encoded into a set of encoded data slices that is divided into block sets of encoded data slices, and where each storage unit stores a block set of encoded data slices. The method continues with the processing module generating a set of read requests in accordance with retrieval information which assures that at least a decode threshold number of encoded data slices of the set are retrievable, where each request includes identity of a block set a number of encoded data slices that are to be read from a storage unit. The method continues with the processing module sending the set of read requests to the storage units and decoding received encoded data slices to recover the data segment.
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