发明名称 |
System and method for correcting for head tilt in HDD |
摘要 |
Tilt between a head stack and its associated disk stack in a hard disk drive (HDD) is measured by determining the deviation of a target head from its expected position (based on the position of the current head) each time electrical contact is switched from the current head to a target head. A running average tilt value is stored and used to modify the logical seek distance used in a Rotational Position Optimization (RPO) algorithm to better order I/O requests in a queue. Also, the running average tilt value can be used by the servo to pre-position the target head before electrical contact is made with the target head, to improve speed of operation.
|
申请公布号 |
US2007047129(A1) |
申请公布日期 |
2007.03.01 |
申请号 |
US20060592949 |
申请日期 |
2006.11.02 |
申请人 |
AUERBACH DANIEL J;DOBBEK JEFFREY J;FREES GREGORY M;HALL DAVID R |
发明人 |
AUERBACH DANIEL J.;DOBBEK JEFFREY J.;FREES GREGORY M.;HALL DAVID R. |
分类号 |
G11B19/02;G11B21/08;G11B5/55;G11B5/56;G11B20/20;G11B21/02;G11B21/20 |
主分类号 |
G11B19/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|