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Learn More about DFL-WDII ARCO
DFL-WDII ARCO is usually used to optimize the hdd parameters after complete firmware rewrite, otherwise, it is not necessary to use it at all. If no change of firmware, you just need to RUN 46 optimization for User Area optimization and RUN 28 for handling defected sectors.

6F: It is to adujust the max. r/w rate of heads in each zone and the dynamic flying height of the heads. The test ID is C4;

6A: Preamplifier Calibration, WRRO Delay Calibration, initial setting heads' MRJOG rate, adujust heads' r/w interleaving factors; The test ID is C4;

6B: Preamplifier Calibration,Head MRJOG Optimization, Set the magnetic flux to parameter 1 and set the magnetic intensity to parameter 1, Calculate the best magnetic intensity. The test ID is C3.

69: Calculate each magnetic surface flux and set proper capacity proportion; The test ID is C8;

46: Full advanced read channels' optimization and test, the test ID is C4.

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