| 摘要 |
<p>In a magnetic disk drive which has a plurality of heads (1) (#0 to #N) which are connected to each other corresponding to a plurality of stacked disk media (2) (#0 to #N) respectively and changes the head on a certain cylinder in the order of 0, 1, -----, and N, moves the head to the next cylinder position, and also changes the head in the order of 0, 1, -----, and N, at the point of time T0 before the point of time T1 that the reading or writing of data for one track (Sectors #0 to #99) by Head #0 on a certain cylinder ends, a head select command for the next head (Head #1) is issued to the selection controller (10) from the data controller (7), and then the head is changed to Head #1 at T2, and the offset between the heads is compensated, and the head starts reading or writing data from Sector #0 (shifted from Disk #0). The period of T0 to T1 is set to the time required for the selection controller to analyze the select command or more. <IMAGE></p> |
