Data object recovery for storage systems
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United States of America Patent
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Dec 11, 2018
Grant Date -
Jan 4, 2018
app pub date -
Jan 5, 2017
filing date -
Jun 29, 2016
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Abstract
A method comprising: receiving an I/O request for object data; determining one or more data fragments wherein the object data is stored; determining that one or more of the data fragments are unavailable; determining, from within the one or more unavailable data fragments, a set of slices storing the object data, each slice comprising k small data fragments and m coded fragments; for each slice, retrieving at least k small data and coded fragments within the slice from storage; and recovering a segment of the object data using the retrieved small data and coded fragments. A related system and computer program product are also described.
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