Method and apparatus of performing graceful thermal shutdown in solid state drives
AssigneeSK hynix Inc.
InventorWenwei Wang
Life of this patent
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Abstract
A method, system, and control for thermal shutdown of a storage device. The method and control determine that a temperature of the storage device is approaching a critical temperature; disable input power to the storage device upon determining that the temperature is approaching the critical temperature; when the input power to the storage device is disabled, power the storage device with auxiliary power; and under the auxiliary power, transfer data from a buffer in the storage device to a memory of the storage device.
Claims20
A method for thermal shutdown of a storage device, comprising:
- determining that a temperature of the storage device is approaching a critical temperature;
- disabling input power to the storage device upon determining that the temperature is approaching the critical temperature;
- when the input power to the storage device is disabled, powering the storage device with auxiliary power;
- and
- under the auxiliary power, transferring data from a buffer in the storage device to a memory of the storage device,
- wherein
- the input power is disabled prior to the storage device reaching the critical temperature, and
- the data is transferred during a time margin before the storage device reaches the critical temperature.
A system for thermal shutdown of a storage device comprising:
- a control circuit for controlling the thermal shutdown of the storage device, wherein the control circuit is configured to:
- determine that a temperature of the storage device is approaching a critical temperature;
- disable input power to the storage device upon determining that the temperature is approaching the critical temperature;
- when the input power to the storage device is disabled, power the storage device with auxiliary power;
- and
- under the auxiliary power, transfer data from a buffer in the storage device to a memory of the storage device,
- wherein
- the input power is disabled prior to the storage device reaching the critical temperature, and
- the data is transferred during a time margin before the storage device reaches the critical temperature.
A control for thermal shutdown of a storage device, comprising:
- a controller configured to:
- determine that a temperature of the storage device is approaching a critical temperature;
- disable input power to the storage device upon determining that the temperature is approaching the critical temperature;
- when the input power to the storage device is disabled, power the storage device with auxiliary power;
- and
- under the auxiliary power, transfer data from a buffer in the storage device to a memory of the storage device,
- wherein
- the input power is disabled prior to the storage device reaching the critical temperature, and
- the data is transferred during a time margin before the storage device reaches the critical temperature.
Dependencies are inferred from the claim text.