| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a magnetic disk apparatus, a magnetic disk program and a data storage method detecting a side erase track while suppressing use capacity of a memory. <P>SOLUTION: The magnetic disk apparatus 1 uses a head 50 to write data in a plurality of unit areas arranged in an adjacent relationship to each other in a magnetic disk 60, and includes: a first recording section recording, in a RAM 12, the position of a unit area which is a target of data write; a first counting section counting 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 recording, in a nonvolatile storage medium different from the RAM 12, a side position being the position of a unit area adjacent to the unit area whose number of records counted by the first counting section is the prescribed number or more. <P>COPYRIGHT: (C)2009,JPO&INPIT |
