SQL Server On Linux: Forced Unit Access (Fua) Internals
SQL Server According to Bob
DECEMBER 18, 2018
Device level flushing may have an impact on your I/O caching, read ahead or other behaviors of the storage system. Testing shows that by using the Fua bit with the data, write request can reduce the I/O traffic by ~50% for a SQL Server, write-intensive workload. Linux open command flag used to bypass file system cache.
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