Incremental erasure coding for storage systems
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United States of America Patent
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Apr 2, 2019
Grant Date -
Jan 4, 2018
app pub date -
Jan 5, 2017
filing date -
Jun 29, 2016
priority date (Note) -
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Abstract
A method comprising: generating a storage chunk having a plurality of data fragments, the storage chunk stored in one or more storage devices; allocating space in a primary memory to store a plurality of coded fragments; receiving a plurality of I/O requests to write data; allocating space in the primary memory to store a next unfilled data fragment; processing a plurality of I/O requests to write data; and copying the coded fragments from the primary memory to the one or more storage devices. For each I/O request, writing the data to the next unfilled data fragment in the one or more storage devices, writing the data to the next unfilled data fragment in the primary memory, and if the data fragment in the primary memory is full, updating the coded fragments in the primary memory using the filled data fragment in the primary memory.
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