Apparatus and methods using invalidity indicators for buffered memory
AssigneeSamsung Electronics Co., Ltd.
InventorsChan-Ik Park, Sang Min, Tae-Sung Jung, Kyun-Ho Kook
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Abstract
A storage system includes a storage medium configured to store data and a buffer memory configured to buffer data to be written to the storage medium. The storage system further includes a controller configured to selectively transfer the buffered data to the storage medium responsive to an invalidity indicator received from an external source. For example, the invalidity indicator may comprise unwrite information received from an external source, e.g., information that indicates that selected buffered data corresponds to deleted file data.
Claims33
A storage system, comprising:
- a storage medium configured to store data;
- a buffer memory configured to buffer data to be written to the storage medium;
- and
- a controller configured to selectively transfer the buffered data to the storage medium responsive to an invalidity indicator received from an external source.
A computing system, comprising:
- a storage system comprising a storage medium configured to store data, a buffer memory configured to buffer data to be written to the storage medium and a controller configured to selectively transfer the buffered data to the storage medium responsive to an invalidity indicator;
- and
- a host configured to transfer the data to the buffer memory and to provide the invalidity indicator to the storage system responsive to a data modification operation at the host.
A method of operating a storage system including a storage medium and a buffer memory configured to store data to be written to the storage medium, the method comprising:
- receiving a invalidity indicator related to data stored in the buffer memory from an external source;
- and
- selectively transferring data stored in the buffer memory to the storage medium responsive to the received invalidity indicator.
A system for controlling data storage in a storage medium, the system comprising:
- a buffer memory configured to buffer data to be written to the storage medium;
- and
- a controller configured to selectively transfer the buffered data to the storage medium responsive to an invalidity indicator received from an external source.
Dependencies are inferred from the claim text.