Method operating hard disk drive on the basis of predicted defect using hierarchical clustering and curve fit
AssigneeSamsung Electronics Co., Ltd.
InventorsHristov Stoev YOULIAN, Jin-won CHOI, Nam-guk KIM
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Abstract
A method of operating a hard disk drive (HDD) on the basis of a predicted new defect in a disk associated with the HDD is disclosed. The method includes detecting defects in a magnetic surface of the disk, defining a plurality of clusters by grouping the detected defects using a hierarchical clustering algorithm, calculating a curve fit for each one of the plurality of clusters, predicting a new defect likely to occur in the magnetic surface of the disk on the basis of the calculated curve fit; and writing data to the disk on the basis of the new defect prediction.
Claims20
A method of operating a hard disk drive (HDD) on the basis of a predicted new defect in a disk associated with the HDD, the method comprising:
- detecting defects in a magnetic surface of the disk;
- defining a plurality of clusters by grouping the detected defects using a hierarchical clustering algorithm;
- calculating a curve fit for each one of the plurality of clusters;
- predicting a new defect likely to occur in the magnetic surface of the disk on the basis of the calculated curve fit;
- and
- writing data to the disk on the basis of the new defect prediction.
A computer readable recording medium recording a program operating in relation to a hard disk drive (HDD), the program implementing a method of operating the HDD on the basis of a predicted new defect in a disk associated with the HDD, the method comprising:
- detecting defects in a magnetic surface of the disk;
- defining a plurality of clusters by grouping the detected defects using a hierarchical clustering algorithm;
- calculating a curve fit for each one of the plurality of clusters;
- predicting a new defect likely to occur in the magnetic surface of the disk on the basis of the calculated curve fit;
- and
- writing data to the disk on the basis of the new defect prediction.
A method of operating a hard disk drive (HDD) on the basis of a predicted new defect in a disk associated with the HDD, the method comprising:
- detecting defects in a magnetic surface of the disk;
- defining a plurality of clusters by grouping the detected defects using a hierarchical clustering algorithm;
- calculating a curve fit for each one of the plurality of clusters;
- predicting a new defect likely to occur in the magnetic surface of the disk on the basis of the calculated curve fit;
- registering the predicted new defect in a defect map;
- and
- writing data to the disk on the basis of the defect map.
Dependencies are inferred from the claim text.