Write command reporting
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United States of America Patent
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May 2, 2017
Grant Date -
N/A
app pub date -
Jun 29, 2015
filing date -
Jun 29, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
In operating a Data Storage Device (DSD) in communication with a host, a reported write command log is maintained that includes entries identifying pending write commands reported as completed to the host but whose data is not yet stored in at least one Non-Volatile Memory (NVM) of the DSD. The reported write command log is maintained to persist over power cycles. A write command is received from the host to store data in the at least one NVM and the data for the write command is buffered in a volatile memory of the DSD for storage in the at least one NVM. The reported write command log is updated to account for the write command as a pending write command reported as completed, and an indication is sent to the host reporting completion of the write command before completing storage of the data in the at least one NVM.
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