Condensing a defect scan log for a disk of a disk drive

Details Condensing a defect scan log for a disk of a disk drive Condensing a defect scan log for a disk of a disk drive

2009-03-06

2011-10-18

Negron, Daniell L (Department: 2627)

Dynamic magnetic information storage or retrieval

Monitoring or testing the progress of recording

Reexamination Certificate

active

08040625

ABSTRACT:
A disk drive to condense a defect scan log for a disk is disclosed. The disk drive comprises: a disk including a plurality of tracks having a plurality of wedges; a head to perform read operations from the disk including reading defects on the disk; and a processor. The processor controls operations in the disk drive including: determining a plurality of defect zones, wherein each defect zone includes a plurality of physical locations on the disk; detecting defects on the disk; recording the defects into the defect scan log as log entries, wherein the log entries comprise a location parameter related to the defect location on the disk; determining that the number of defects detected in a first defect zone exceed a first threshold; and combining the log entries of the first defect zone into a coalesced log entry.

REFERENCES:
patent: 5146571 (1992-09-01), Logan
patent: 6034831 (2000-03-01), Dobbek et al.
patent: 6223303 (2001-04-01), Billings et al.
patent: 6336202 (2002-01-01), Tsuchimoto et al.
patent: 6384999 (2002-05-01), Schibilla
patent: 6408406 (2002-06-01), Parris
patent: 6606211 (2003-08-01), Lim et al.
patent: 6651192 (2003-11-01), Viglione et al.
patent: 6691255 (2004-02-01), Rothberg et al.
patent: 6704153 (2004-03-01), Rothberg et al.
patent: 6710958 (2004-03-01), Wyatt
patent: 6862150 (2005-03-01), Eto
patent: 6947232 (2005-09-01), Lim et al.
patent: 6985319 (2006-01-01), Yip et al.
patent: 7072129 (2006-07-01), Cullen et al.
patent: 7236911 (2007-06-01), Gough et al.
patent: 7269525 (2007-09-01), Gough et al.
patent: 7653847 (2010-01-01), Liikanen et al.
patent: 7685360 (2010-03-01), Brunnett et al.
patent: 2001/0055172 (2001-12-01), Yip et al.
patent: 2002/0191319 (2002-12-01), Liew et al.
patent: 2004/0100715 (2004-05-01), Smith et al.
patent: 2006/0056088 (2006-03-01), Kudoh et al.
patent: 2007/0025005 (2007-02-01), Shimizu
patent: 2007/0263313 (2007-11-01), Kitamura et al.

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