There are three HD in my LaCie 12big Thunderbolt 3:
1. HD0 raid0 4x2Tdisk speed 500M/s
2. HD1 raid0 4x2Tdisk speed 500M/s
3. HD2 single 16T sata disk speed 200M/s
There are one usb3.0 external disk
4. HD4 usb3.0 WD My Passport 2T
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Test 3. input file from SSD1, output file HD no cache, CPU 30-40%, 5fps.
Test 4. input file from SSD1, output file HD write cache, CPU 80%, 10 fps.
This HD is HD0 raid0 4x2Tdisk speed 500M/s
So, you can see CPU and disk speed not full both, There is a problem here.
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Today, I upgraded the driver for the Lacie 12big, Test HD0 again, Better than before.
Test 7. input file from SSD1, output file HD0 no cache, CPU 57%, Disk 13% speed 10M/s, 6.6fps.
Test 8. input file from SSD1, output file HD0 write cache, CPU 97%, Disk 5% speed 13.6M/s, 10fps.
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