Selectively depowering portion of a controller to facilitate hard disk drive safeguard operations
First Claim
Patent Images
1. A controller capable of being coupled to circuitry of a hard disk drive, the controller configured to:
- in response to the hard disk drive losing primary power, obtain power from a spinning motor of the hard disk drive; and
selectively depower portions of the controller to facilitate performing safeguard operations via the controller using the power obtained from the spinning motor.
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Accused Products
Abstract
In response to a hard disk drive losing primary power, power is obtained from a spinning motor of the hard disk drive. Portions of a controller of the hard disk drive are selectively depowered to facilitate performing safeguard operations via the controller using the power obtained from the spinning motor.
20 Citations
20 Claims
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1. A controller capable of being coupled to circuitry of a hard disk drive, the controller configured to:
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in response to the hard disk drive losing primary power, obtain power from a spinning motor of the hard disk drive; and selectively depower portions of the controller to facilitate performing safeguard operations via the controller using the power obtained from the spinning motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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in response to a hard disk drive losing primary power, obtaining power from a spinning motor of the hard disk drive; and selectively depowering portions of a controller of the hard disk drive to facilitate performing safeguard operations via the controller using the power obtained from the spinning motor. - View Dependent Claims (11, 12, 13, 14)
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15. An apparatus comprising:
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a power loss detection circuit configured to provide a power loss signal responsive to the apparatus losing primary power; a power supply circuit coupled to the power loss detection circuit and configured to provide shutdown power from a spinning disk motor of a hard disk drive in response to the power loss signal; and a controller coupled to the power loss detection circuit and including portions that are selectively depowered responsive to the power loss signal; wherein the apparatus is configured to perform safeguard operations of the hard disk drive using the shutdown power in response to the power loss signal. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification