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Comment by lisper

10 years ago

FSYNC is not enough. You also have to make sure that NCQ is disabled:

https://en.wikipedia.org/wiki/Native_Command_Queuing

1 comment

lisper

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chemodax  10 years ago

OS can use Force Unit Access flag with NCQ to control disk buffering: https://en.wikipedia.org/wiki/Disk_buffer#Force_Unit_Access_...

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