| 发明名称 |
Disk drive logging failure analysis data when performing an emergency unload |
| 摘要 |
A disk drive is disclosed comprising a head actuated over a disk, a spindle motor operable to rotate the disk, and a ramp near an outer periphery of the disk. When an emergency condition is detected, the head is unloaded onto the ramp, and failure analysis data identifying a cause of the emergency condition is logged. |
| 申请公布号 |
US8970977(B1) |
申请公布日期 |
2015.03.03 |
| 申请号 |
US201213631588 |
申请日期 |
2012.09.28 |
| 申请人 |
Western Digital Technologies, Inc. |
发明人 |
Agness John R.;Gu Mingying |
| 分类号 |
G11B5/54;G11B19/28 |
主分类号 |
G11B5/54 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A disk drive comprising:
a disk; a head actuated over the disk; a spindle motor operable to rotate the disk; a ramp near an outer periphery of the disk; control circuitry operable to:
detect an emergency condition;unload the head onto the ramp in response to the detected emergency condition; andlog failure analysis data identifying a cause of the emergency condition,wherein the emergency condition comprises a speed of the spindle motor falling below a threshold. |
| 地址 |
Irvine CA US |
