Magnetic disk apparatus and data storage method

Details Magnetic disk apparatus and data storage method Magnetic disk apparatus and data storage method

2011-04-05

2011-04-05

Sniezek, Andrew L (Department: 2627)

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

C360S031000, C360S055000, C360S047000

Reexamination Certificate

active

07920352

ABSTRACT:
A magnetic disk apparatus that uses a head to write data in a plurality of unit areas arranged in an adjacent relationship to each other on a surface of a magnetic disk, and includes: a first recording section that records, in a RAM, the position of a unit area which is a target of data write; a first counting section that counts the number of times of data write operation performed for the unit area corresponding to the position recorded by the first recording section; and a second recording section that records, in a non-volatile storage medium different from the RAM, the side position which is the position of a unit area adjacent to the unit area whose number of records counted by the first counting section is more than a predetermined value.

REFERENCES:
patent: 7463441 (2008-12-01), Cho et al.
patent: 2004/0193798 (2004-09-01), Kuwamura
patent: 2007/0211363 (2007-09-01), Nagashima et al.
patent: 2008/0174905 (2008-07-01), Ueda
patent: 2009/0244775 (2009-10-01), Ehrlich
patent: 2007-242207 (2007-09-01), None

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