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US 12,743,219 B2Granted
Power state control method and data storage system
AssigneeAcer Incorporated
InventorsHung-Sheng Wu, Wei-Kuo Shih
Life of this patent
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Abstract
A power state control method and a data storage system are disclosed. The method includes: establishing a connection between a host system and a storage device; detecting a data access performance of the storage device through the connection; and instructing the storage device to operate at one of a plurality of power states of a normal work state according to the data access performance.
Claims10
A power state control method, comprising:
- establishing a connection between a host system and a storage device;
- detecting, through a memory controller in the storage device, at least one of a data reading speed and a data writing speed of a memory module in the storage device under a normal working state in real time;
- querying a data table which records setting information corresponding to a plurality of candidate power states of the normal working state according to the at least one of the data reading speed and the data writing speed of the memory module detected by the memory controller in real time;
- instructing the storage device to operate at one of the candidate power states according to a query result of the data table,
- wherein the setting information reflects that the candidate power states comprises a first power state and a second power state,
- the first power state is configured to limit a total power consumption of the storage device to be no greater than a first percentage of a maximum power limit,
- the second power state is configured to limit the total power consumption to be no greater than a second percentage of the maximum power limit, and the first percentage is different from the second percentage.
4 more elements
A data storage system, comprising:
- a host system;
- and
- a storage device, coupled to the host system,
- wherein the host system is configured to:
- establish a connection between the host system and the storage device;
- detect, through a memory controller in the storage device, at least one of a data reading speed and a data writing speed of a memory module in the storage device under a normal working state in real time;
- query a data table which records setting information corresponding to a plurality of candidate power states of the normal working state according to the at least one of the data reading speed and the data writing speed of the memory module detected by the memory controller in real time;
- instruct the storage device to operate at one of the candidate power states according to a query result of the data table,
- wherein the setting information reflects that the candidate power states comprises a first power state and a second power state,
- the first power state is configured to limit a total power consumption of the storage device to be no greater than a first percentage of a maximum power limit,
- the second power state is configured to limit the total power consumption to be no greater than a second percentage of the maximum power limit, and the first percentage is different from the second percentage.
8 more elements
Dependencies are inferred from the claim text.