Region-specific directed offline scan for hard disk drive

Region-specific directed offline scan for hard disk drive

An adjacent track interference (ATI) metric is determined for each of a plurality of regions of a single surface of a magnetic disk. Based on the ATI metrics, each of the regions is assigned a region-specific directed offline scan (DOS) criterion, at least two of the DOS criteria being different fro...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Toribio, Jose Mari, Lim, Teck Khoon, Xie, Wenxiang, Qiang, Jian, Liu, Xiong
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:An adjacent track interference (ATI) metric is determined for each of a plurality of regions of a single surface of a magnetic disk. Based on the ATI metrics, each of the regions is assigned a region-specific directed offline scan (DOS) criterion, at least two of the DOS criteria being different from one another. Based on a write count of a track within one of the regions satisfying the associated region-specific DOS criterion, a DOS remediation of the track is performed.