Ask about 32g memory, 3 12t for raidz, 7200 RPM hard disk, and copy 15g files under the 10 Gigabit network. The speed of copying to win10 is only 400MB. It seems that the memory read cache does not work, but it can reach 1g when the same file is overwritten and copied for the second time. Why does the read cache not work when copying for the first time? But write cache seems to work every time!!
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