公开(公告)号：DE69119855D1

公开(公告)日：1996-07-04

申请号：DE69119855

申请日：1991-09-16

Applicant: IBM

Inventor： BACA FRANCISCO ANTONIO ,  FENNEMA ALAN AUGUST ,  HANCOCK REED ALAN ,  JAQUETTE GLEN ALAN ,  TIPTON LAWRENCE DAVID ,  WINARSKI DANIEL JAMES

IPC: G11B7/00 ,  G11B7/0037 ,  G11B7/004 ,  G11B7/09 ,  G11B7/125 ,  G11B11/105 ,  G11B19/04 ,  G11B19/28 ,  G11B27/36 ,  G11B33/10

Abstract: The present invention relates to a data storage system (12, 13, 14, 15) of the type which comprises loading means (17,18) for loading a removable data storage disk into the system, driving means for rotating a disk loaded into the system up to an operational speed of rotation, and calibrating means (11) for calibrating the system in accordance with a disc loaded into the system. According to the invention the data storage system is characterised in that the calibrating means comprises sensing means for sensing the speed of rotation of a disk loaded into the system, means responsive to the speed sensing means for indicating when the speed of rotation is at a predetermined value less than the operational speed of rotation, and means for performing selected calibration operations on the system when the speed of rotation of said disk loaded into the system has reached the predetermined value.