Invention Application
- Patent Title: POWER MANAGEMENT FOR DATA STORAGE DEVICE
- Patent Title (中): 数据存储设备的电源管理
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Application No.: PCT/US2014/062741Application Date: 2014-10-28
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Publication No.: WO2015066088A1Publication Date: 2015-05-07
- Inventor: HASFAR, Zaihas Amri Fahdzan , ONG, Choo-Bhin , CHENG, Jonathan K.
- Applicant: WESTERN DIGITAL TECHNOLOGIES, INC.
- Applicant Address: 3355 Michelson Drive Suite 100 Irvine, California 92612 US
- Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
- Current Assignee Address: 3355 Michelson Drive Suite 100 Irvine, California 92612 US
- Agency: CHAN, David H. et al.
- Priority: US61/897,063 20131029; US14/105,603 20131213
- Main IPC: G11B19/20
- IPC: G11B19/20
Abstract:
A data storage device (DSD) enters a high spindle suppression (HSS) mode to reduce instances of rotation of a spindle motor of the DSD during the HSS mode. When a read command is received from a host to read requested data from the DSD in the HSS mode, it is determined whether the requested data is not stored in a solid state memory of the DSD. If it is determined that the requested data is not stored in the solid state memory, the spindle motor is controlled to rotate a disk of the DSD. The requested data is read from the disk and stored in the solid state memory before completing transfer of the requested data to the host.
Information query
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