Counteracting gas ingestion in a hydrodynamic bearing spindle motor
First Claim
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1. A method of counteracting gas ingestion in a hydrodynamic bearing of a spindle motor in a data storage device, the method comprising:
- waiting for activity of a host connected with the data storage device to become idle;
determining whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor; and
responsive to determining to release gas from a fluid of the hydrodynamic bearing of the spindle motor, performing a motor spin down routine for the spindle motor.
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Abstract
According to one embodiment of the present invention, a method of counteracting gas ingestion in a hydrodynamic bearing of a spindle motor in a data storage device comprises waiting for activity of a host connected with the data storage device to become idle. When the activity of the host becomes idle, a determination is made whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor. Responsive to determining to release gas from a fluid of the hydrodynamic bearing of the spindle motor a motor spin down routine for the spindle motor is performed.
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Citations
30 Claims
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1. A method of counteracting gas ingestion in a hydrodynamic bearing of a spindle motor in a data storage device, the method comprising:
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waiting for activity of a host connected with the data storage device to become idle;
determining whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor; and
responsive to determining to release gas from a fluid of the hydrodynamic bearing of the spindle motor, performing a motor spin down routine for the spindle motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A data storage device comprising:
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a spindle motor having a rotating shaft, the rotating shaft supported by a hydrodynamic bearing;
a microprocessor coupled with the spindle motor to control rotation of the spindle motor; and
a memory, the memory having stored thereon a series of instructions representing a routine to counteract gas ingestion in a hydrodynamic bearing of the spindle motor in the data storage device, the routine, when executed by the microprocessor, causes the microprocessor to wait for activity of a host to which the data storage device is connected to become idle, determine whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor, and responsive to determining to release gas from the fluid of the hydrodynamic bearing of the spindle motor, perform a motor spin down routine for the spindle motor. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A machine-readable medium having stored thereon a series of instructions representing a routine to counteract gas ingestion in a hydrodynamic bearing of a spindle motor in a data storage device, the routine, when executed by a processor, causes the processor to:
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wait for activity of a host to which the data storage device is connected to become idle;
determine whether to release gas from a fluid of the hydrodynamic bearing of the spindle motor; and
responsive to determining to release gas from a fluid of the hydrodynamic bearing of the spindle motor, perform a motor spin down routine for the spindle motor. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification