HYBRID MEMORY DEVICE, MEMORY SYSTEM INCLUDING SAME AND DATA PROCESSING METHOD

摘要

A method of processing data in a memory system including a control unit and a hybrid memory device having a first memory and a second memory, includes; receiving first write data, storing the first write data in the first memory and assigning a first group state from among a plurality of group states to the stored first write data in response to first attribution information, completing a data processing operation in the memory system directed to the stored first write data that changes the attribution information associated with the stored first write data by monitoring of the first attribution information using an operating system running on the memory controller, and changing the first group state assigned to the stored first write data to a second group state from among the plurality of group states, the second group state having a different priority than a priority for the first group state.

主权项

1. A hybrid memory device comprising:
a first memory operating according to a first speed and configured for use as a primary memory to receive and store data having assigned attribution information; a second memory operating according to a second speed different from the first speed; and a memory controller configured to perform a flush operation that secures additional free space in the first memory by copying data from the first memory to the second memory, wherein the memory controller classifies data during storage of the data in the first memory according to one of a plurality of group states in response to attribution information associated with the data, wherein the plurality of group states range from a lowest priority to a highest priority, and upon receiving a write data request including write data, the memory controller is further configured to determine whether sufficient free space exists in the first memory to store the write data, and upon determining that insufficient free space exists in the first memory, overwrites data assigned at least the lowest priority group state.