Synchronizing replicas with media errors in distributed storage systems
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United States of America Patent
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Apr 24, 2018
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N/A
app pub date -
Jun 30, 2016
filing date -
Jun 30, 2016
priority date (Note) -
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Abstract
Systems and techniques are described for transferring data. A described technique includes receiving a request to transmit a data block from a first data storage device to a second data storage device. An attempt to read the data block from the first data storage device is made. A media error resulting from the attempt to read the data block from the first data storage device is detected. In response to detecting the media error, a new data block is generated and includes mismatched checksum data that causes a checksum mismatched error when the new data block is accessed. The new data block is transmitted for storage at the second data storage device in place of the data block.
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