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US 2012/0233497 A1Published application
Data storage apparatus, cache control apparatus and method for controlling cache memory
AssigneeKabushiki Kaisha Toshiba
InventorTakayuki MORI
Life of this patent
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Abstract
According to one embodiment, a cache control apparatus includes an error detecting and correcting module and a controller. The error detecting and correcting module is configured to detect errors in the data read from a cache memory and to correct the errors. The controller is configured to control the supply of power to the cache memory if the error detecting and correcting module is unable to correct errors and if the errors are hard errors.
Claims11
A cache control apparatus comprising:
- an error detecting and correcting module configured to detect errors from data read from a cache memory and to attempt to correct the errors;
- and
- a controller configured to control, if the error detecting and correcting module is unable to correct the errors and if the errors are hard errors, a power supply by
- interrupting a supply of power to the cache memory, and
- resuming the supply of power to the cache memory.
2 more elements
A method for controlling a cache memory, the method comprising:
- detecting errors from data read from the cache memory;
- correcting the errors;
- and
- controlling, if the errors cannot be corrected and if the errors are hard errors, a power supply by
- interrupting a supply of power to the cache memory, and
- resuming the supply of power to the cache memory.
3 more elements
A data storage apparatus comprising:
- a storage medium configured to store data;
- and
- a cache controller configured to read, from a cache memory, data designated by a read command made to the storage medium;
- wherein the cache controller is configured to detect errors from the data read from the cache memory, to correct the errors, and to control, if the errors are unable to be corrected and are hard errors, a power supply by interrupting a supply of power to the cache memory and then resuming the supply of power to the cache memory.
1 more element
Dependencies are inferred from the claim text.