Hybrid storage device and method of operating the same
AssigneeElectronics and Telecommunications Research Institute
InventorSeung Kook CHEONG
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Abstract
The inventive concept herein relates to data storage devices, and more particularly, to a hybrid storage device including a plurality of storage media. The hybrid storage device may include first and second storage media storing a plurality of data blocks according to a data type and a hybrid controller configured to copy a data block having a change type to the first storage medium if a data type of the data block stored in the second storage medium is changed.
Claims15
A hybrid storage device comprising:
- first and second storage media in which a plurality of data blocks having a data type of hot data or cold data is stored according to the data type;
- and
- a hybrid controller which is configured to copy the data block having a changed data type to the first storage medium if the data type of the data block stored in the second storage medium is changed,
- wherein when the data type of the data block copied to the first storage medium is changed again and the data block copied to the first storage medium is not updated, the hybrid controller is configured to skip an operation that the copied data block is recopied to the second storage medium.
An operation method of hybrid storage device including first and second storage media comprising:
- storing a plurality of data blocks in the first and second storage media according to data types of the plurality of data blocks;
- and
- copying data block of changed data type to the first storage medium if the data type of data block stored in the second storage medium is changed,
- wherein when the data type of data block copied to the first storage medium is changed again and the data block copied to the first storage medium is not updated, an operation that the copied data block is recopied to the second storage medium is omitted.
Dependencies are inferred from the claim text.