Method for adaptively allocating data storage tracks in a...

Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism – Controlling the head

Reexamination Certificate

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Details

C360S025000, C360S031000, C711S112000, C711S170000

Reexamination Certificate

active

06882496

ABSTRACT:
A band of data storage tracks adjacent to an initial OD (outer diameter) limit are analyzed to determine a track defect density based on flagged tracks within the band. If the defect density exceeds a predetermined threshold, them the disk drive is reconfigured by adjusting initial OD and ID (inner diameter) limits to exclude the analyzed band and to maintain a targeted storage capacity. Adjusting the initial OD and ID limits improves the disk drive's seek performance which would otherwise be disproportionately impacted by the defect density in the analyzed band.

REFERENCES:
patent: 6301679 (2001-10-01), Tan
patent: 20040075933 (2004-04-01), Hetzler et al.

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