METHOD AND APPARATUS FOR PERFORMING DATA RECOVERY IN REDUNDANT STORAGE SYSTEM
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United States of America Patent
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Dec 16, 2016
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May 13, 2016
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Abstract
A method for performing data recovery in a redundant storage system and an associated apparatus are provided. The method includes: sending at least one basic command from a specific layer in a plurality layers of the redundant storage system to a lower layer of the specific layer, in which the basic command includes a read command, and the read command is used for requesting the lower layer to return a data block corresponding to an index; and sending at least one additional command from the specific layer to the lower layer, in which the additional command includes a read retry command, and the read retry command is used for requesting the lower layer to return a redundant data block corresponding to the index, for recovering the data block. The bottommost layer includes at least one set of storage devices.
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