公开(公告)号：DE69224701T2

公开(公告)日：1998-10-29

申请号：DE69224701

申请日：1992-10-28

Applicant: IBM

Inventor： ANDERSON CLARK ALAN ,  ANDERSON TODD BARRY ,  CADLONI GERALD LAWRENCE ,  CUNNINGHAM EARL ALBERT ,  HICKEN MICHAEL SCOTT ,  RENO DANIEL DONALD ,  STEPHENSON JOHN JEFFREY

IPC: G11B21/08 ,  G11B5/55 ,  G11B5/596 ,  G11B19/20

Abstract: In a ultra high density, multiple-disk drive, track switches within a cylinder of tracks as well as track switches to tracks on other cylinders both require a movement of the head stack actuator. Track switching latency in such a disk drive is reduced by overlapping pre-movement portions of the track switching process with the data transfer operation of the currently active recording head. In addition, post-movement portions of the track switching process are overlapped with the movement of the heads so that the next selected read/write head may begin a data transfer operation immediately upon arrival at the next track. Further, the pre-movement and post-movement portions of the track-switch process may be overlapped with low displacement movement of the read/write heads relative to the currently active track or the next track.

公开(公告)号：DE69224701D1

公开(公告)日：1998-04-16

申请号：DE69224701

申请日：1992-10-28

Applicant: IBM

Inventor： ANDERSON CLARK ALAN ,  ANDERSON TODD BARRY ,  CADLONI GERALD LAWRENCE ,  CUNNINGHAM EARL ALBERT ,  HICKEN MICHAEL SCOTT ,  RENO DANIEL DONALD ,  STEPHENSON JOHN JEFFREY

IPC: G11B21/08 ,  G11B5/55 ,  G11B5/596 ,  G11B19/20

Abstract: In a ultra high density, multiple-disk drive, track switches within a cylinder of tracks as well as track switches to tracks on other cylinders both require a movement of the head stack actuator. Track switching latency in such a disk drive is reduced by overlapping pre-movement portions of the track switching process with the data transfer operation of the currently active recording head. In addition, post-movement portions of the track switching process are overlapped with the movement of the heads so that the next selected read/write head may begin a data transfer operation immediately upon arrival at the next track. Further, the pre-movement and post-movement portions of the track-switch process may be overlapped with low displacement movement of the read/write heads relative to the currently active track or the next track.

公开(公告)号：SG47368A1

公开(公告)日：1998-04-17

申请号：SG1995002117

申请日：1992-10-28

Applicant: IBM

Inventor： ANDERSON CLARK ALAN ,  ANDERSON TODD BARRY ,  CADLONI GERALD LAWRENCE ,  CUNNINGHAM EARL ALBERT ,  HICKEN MICHAEL SCOTT ,  RENO DANIEL DONALD ,  STEPHENSON JOHN JEFFREY

IPC: G11B21/08 ,  G11B5/55 ,  G11B5/596 ,  G11B19/20

Abstract: In a ultra high density, multiple-disk drive, track switches within a cylinder of tracks as well as track switches to tracks on other cylinders both require a movement of the head stack actuator. Track switching latency in such a disk drive is reduced by overlapping pre-movement portions of the track switching process with the data transfer operation of the currently active recording head. In addition, post-movement portions of the track switching process are overlapped with the movement of the heads so that the next selected read/write head may begin a data transfer operation immediately upon arrival at the next track. Further, the pre-movement and post-movement portions of the track-switch process may be overlapped with low displacement movement of the read/write heads relative to the currently active track or the next track.