Storage device predicting access and reproducing data

A storage device comprising:

• a nonvolatile memory device;
• and
• a storage controller configured to control the nonvolatile memory device,
• wherein the storage controller is configured to,
• detect a data pattern repeatedly requested by a host, determine input data and reproduction data in the data pattern, generate a reproduction model for generating the reproduction data when the input data is input using machine learning, and store the input data in a learned data pattern list, and
• in response to a read request for the input data from the host, obtain input data from the nonvolatile memory device, generate the reproduction data by inputting the obtained input data into the reproduction model, and prefetch the generated reproduction data to a buffer memory included in the storage controller.

A storage device comprising:

• a nonvolatile memory device;
• and
• a storage controller configured to control the nonvolatile memory device,
• wherein the storage controller is configured to,
• detect a data pattern repeatedly requested by a host, determine input data and reproduction data in the data pattern, and generate a reproduction model for generating the reproduction data when the input data is input using machine learning, and
• obtain data corresponding to logical addresses from the nonvolatile memory device in response to a read request for the logical addresses from the host, generate the reproduction data by inputting the input data into the reproduction model when the obtained data includes the input data, divide the logical addresses into input logical addresses corresponding to the input data and predictive logical addresses corresponding to the reproduction data when the obtained data further includes the reproduction data, update the input logical addresses and the predictive logical addresses in a logical address pattern list, and invalidate reproduction data corresponding to the predictive logical addresses among data stored in the nonvolatile memory device.