Actuator prepositioning for disk drive
First Claim
Patent Images
1. A method for positioning an actuator of a disk drive in communication with a host, the method comprising:
- determining a target location for prepositioning the actuator to a position expected to decrease a physical access time for a subsequent command from the host before receiving the subsequent command from the host, wherein the target location is determined based on at least one of a characteristic of the disk drive, recent command activity of the host, and information provided by the host; and
moving the actuator toward the target location.
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Abstract
A target location for an actuator of a disk drive is determined for prepositioning the actuator before receiving a command from a host. The target location is determined based on at least one of a characteristic of the disk drive, recent command activity of the host, and information provided by the host. The actuator is moved toward the target location to preposition the actuator.
423 Citations
20 Claims
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1. A method for positioning an actuator of a disk drive in communication with a host, the method comprising:
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determining a target location for prepositioning the actuator to a position expected to decrease a physical access time for a subsequent command from the host before receiving the subsequent command from the host, wherein the target location is determined based on at least one of a characteristic of the disk drive, recent command activity of the host, and information provided by the host; and moving the actuator toward the target location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A disk drive in communication with a host, the disk drive comprising:
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at least one disk for storing data; at least one head for reading data from and writing data to the at least one disk; an actuator for positioning the at least one head in relation to the at least one disk; and a controller configured to; determine a target location for prepositioning the actuator to a position expected to decrease a physical access time for a subsequent command from the host before receiving the subsequent command from the host, wherein the target location is determined based on at least one of a characteristic of the disk drive, recent command activity of the host, and information provided by the host; and command movement of the actuator toward the target location. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification