有没有人能为我解答一下这几个问题呢？谢谢了。

lian861129

有没有人能为我解答一下这几个问题呢？拜托了。

前置ARCO 7个步骤；
C4（6F）、C4（6A）、C3（6B）、C8（69）、C4（46）C4（70）、C4（4A）这些都是代表这什么呢，有什么作用？


希望会的大神们不吝赐教。

拜托了。

scq330

希望会的大神们不吝赐教

lian861129

scq330 发表于 2017-7-15 17:05
希望会的大神们不吝赐教

看来是不会有人来的了。

yang6812

Mini-ARCO will optimize the channel for the reserved zone on the drive under test with the goal of improving error rates. This test is to be run with intelligent host interface. Lately, Western Digital uses both Trex and Windex as an interface. The test results will be written to files as well as available through VSC status. All test related information gathered throughout the test will be logged to files.

lian861129

yang6812 发表于 2017-7-15 20:30
Mini-ARCO will optimize the channel for the reserved zone on the drive under test with the goal of i ...

Thank you very much, but the role of 6F / 6A / 6B / 69/46/70 / 4A, is not very understanding, I do not know can explain it? Or are there any relevant information available?

yang6812

The TOUCHDOWN (TD) calibration is used to find the maximum power that can be applied to the heater element for each head on a drive. This is accomplished by continuing to apply power to lower the heads until they make contact with the media or until the maximum allowable power has been applied. The head to media contact happens only during the calibration process for test purposes. The head is not supposed to touch the media during the normal read-write operations. As the heads make contact with the media, the stress will be registered in the servo flex bias component which will be measured and saved to a log file for analysis. As a result of this test, the maximum power corresponding to the reader/writer for each head/zone combination will be saved to file 46. The TOUCHDOWN calibration is followed by RDWDGap calibration.

yang6812

The scope of this test module will be to determine the Tracks Per Inch (TPI) setting for each head of the drive under test. This test is to run without intervention with results written to a file, and all the failure analysis information gathered throughout the test will be logged to a reserved cylinder.  As result of this test, the drive will have the TPI set based upon the test results. The test procedure is following.

yang6812

The purpose of this calibration is to determine the writer-reader gap for each head of the drive under test. This test is to run without intervention with results written to a file and all the failure analysis information gathered throughout the test will be logged to a reserved cylinder (zone 0).  As a result of this test, the drive will have file 0x46 updated with the gap calibration information. The file 0x46 is the optimized channel parameter, which is stored on the zone 0 area. On the other hand, on the Mini-ARCO process, the file 0x47 is the optimized channel parameter, which is stored in the flash area inside of SoC. These optimized parameters in file 0x46 will be used in read and write operation of zone 1 through zone 20. Here is the optimization process.

lian861129

yang6812 发表于 2017-7-16 14:56
The purpose of this calibration is to determine the writer-reader gap for each head of the drive und ...

Thank you very much for your detailed explanation.