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US 8,943,274 B2Granted
Changing power state with an elastic cache
AssigneeSeagate Technology LLC
InventorsDavid Louis Spengler, Aaron Danis, William Anthony Pagano
Life of this patent
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Abstract
An apparatus and associated method is provided employing data capacity determination logic. The logic dynamically changes a data storage capacity of an electronic data storage memory. The change in capacity is made in relation to a transient energy during a power state change sequence performed by the electronic data storage memory.
Claims20
An apparatus comprising:
- a power module configured to selectively implement a power change to change an amount of power supplied to the apparatus from a first steady state operational power level to a different second steady state operational power level;
- and
- data capacity determination logic including computer instructions stored in memory that are configured to change a data storage capacity of an electronic data storage memory when the apparatus is supplied with a predetermined power level between the first and second steady state operational power levels during the power change.
A method comprising:
- characterizing power supplied to an apparatus during a power change that changes the power supplied to the apparatus from a first steady state operational power level to a different second steady state operational power level;
- and
- changing a data storage capacity of a digital memory when the power supplied to the apparatus is a value between the first and second steady state operational power levels during the power change.
An apparatus comprising:
- a cache device;
- a power supply configured to invoke a power change to change power supplied to the apparatus from a first steady state operational power level to a different second steady state operational power level;
- and
- data capacity determination circuitry that is configured to change a data storage capacity of the cache device when the apparatus is supplied with a predetermined power level between the first and second steady state operational power levels during the power change.
1 more element
Dependencies are inferred from the claim text.