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US 9,430,150 B2Granted
Power control for data storage devices and method therefor
AssigneeDell Products L.P.
InventorsJason D. Adrian, Kevin W. Mundt, Cyril Keilers
Life of this patent
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Abstract
A data storage system includes a data storage controller, a data storage device, and a logic circuit. The logic circuit receives hard drive status information from the data storage controller. The information is communicated by a first status signal and a second status signal. The logic circuit provides a power control signal to the data storage device based on a logic state of the first status signal and a logic state of the second status signal.
Claims20
A method comprising:
- receiving information from a data storage controller, the information indicating status of a data storage device, the information communicated by a first status signal indicating when asserted that the data storage device is online and by a second status signal indicating when asserted that the data storage device has experienced a fault, wherein the first status signal and the second status signal are provided to a visual status indicator;
- and
- asserting a power control signal to remove power from the data storage device in response to determining that the first status signal is asserted and that the second status signal is asserted.
A data storage system comprising:
- a data storage controller;
- a data storage device coupled to the data storage controller;
- and
- a logic circuit to:
- receive hard drive status information from the data storage controller, the information indicating status of the data storage device, the information communicated by a first status signal indicating when asserted that the data storage device is online and a second status signal indicating when asserted that the data storage device has experienced a fault, wherein the first status signal and the second status signal are provided to a visual status indicator;
- and
- asserting a power control signal to remove power from the data storage device in response to the determining that the first status signal is asserted and that the second status signal is asserted.
4 more elements
A device comprising:
- a first input to receive a first data storage device status signal from a data storage controller, the first status signal indicating when asserted that a data storage device is online;
- a second input to receive a second data storage device status signal from the data storage controller, the second status signal indicating when asserted that the data storage device has experienced a fault, wherein the first status signal and the second status signal are provided to a visual status indicator;
- and
- a first output for providing a power control signal to a data storage device, a logic state of the power control signal determined based on a logic state of the first signal and a logic state of the second signal.
1 more element
Dependencies are inferred from the claim text.