Title:
磁気ディスク装置
Document Type and Number:
Japanese Patent JP4063694
Kind Code:
B2
Abstract:
Even under circumstances where a leakage magnetic field deletes data on adjacent tracks little by little, such deletion can be compensated so as to prevent data errors from occurring. A magnetic disk device includes magnetic disks, magnetic heads, and a write and read circuit for writing or reading data, and writes or reads the data on tracks on the magnetic disks. The number of writes of the data on a given track is acquired and it is detected that the number of writes reaches a predetermined number. Then, based on the detection, the data on the tracks adjacent to a given track is read out once and, then, the data is rewritten on the adjacent tracks. Further, when the data is written on the tracks, the data is written on alternate physical tracks and every other track is skipped and, after the data is written on half of all tracks, the data is written on said skipped tracks.
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Inventors:
Nobuhiro Kuwamura
Application Number:
JP2003064974A
Publication Date:
March 19, 2008
Filing Date:
March 11, 2003
Export Citation:
Assignee:
Hitachi Global Storage Technologies Co., Ltd.
International Classes:
G11B5/02; G11B5/09; G11B19/04; G11B20/10
Domestic Patent References:
| JP11273001A | ||||
| JP10241163A | ||||
| JP2000195055A | ||||
| JP10312544A |
Attorney, Agent or Firm:
Ichiro Suzuki