Abstract: A data storage device and a data storing method thereof, including first main memories coupled to a plurality of channels, second main memories coupled to the plurality of channels in common, a buffer memory temporarily storing data to be programmed to the first and the second main memories; and a controller configured to program data of victim cache lines from the buffer memory to the second main memories while data of a first victim cache line from the buffer memory is being programmed to the first main memories. The storing method includes that a victim cache line is selected based on cost-based page replacement.

Abstract: A method of manipulating data includes receiving a data manipulation command for corresponding data, which corresponds to a first logical block address, to a second logical block address. The method further includes mapping the second logical block address to a physical block address, which is mapped to the first logical block address, in response to the data manipulation command. A system for manipulating data includes a host and a flash translation layer. The host transmits a data manipulation command for corresponding data, which corresponds to a first logical block address, to a second logical block address. The flash translation layer maps the second logical block address to a physical block address, which is mapped to the first logical block address, in response to the data manipulation command.

Abstract: A data storage device comprises a plurality of memory devices and a memory controller. The memory controller exchanges data with the memory devices via a plurality of channels. The memory controller decodes an external command to generate a driving power mode and accesses the memory devices according to the driving power mode.