Method and device for data storage

A data storage device, comprising:

• a memory configured to store one or more instructions;
• and
• a processor configured to execute the one or more instructions to:
• determine, based on a write message corresponding to a first file, an application corresponding to the first file, a file type of the first file, and first attribute information corresponding to the file type, the first attribute information corresponding to the file type being obtained based on second attribute information corresponding to all files of the file type on which the write operation processing have been performed in response to the respective write messages of the application;
• predict a stream identification information corresponding to the first file by using a file classifier based on the application corresponding to the first file, the file type of the first file and the first attribute information corresponding to the file type, the file classifier being a trained machine learning model;
• and
• send a writing command carrying the stream identification information to a storage device to cause the storage device to write the first file into a storage block corresponding to the stream identification information.

A system to which a storage device is applied, comprising:

• a main processor;
• a memory;
• and
• a storage device,
• wherein the memory is configured to store one or more instructions;
• and
• wherein in the main processor is configured to execute the one or more instructions to:
• determine, based on a write message corresponding to a first file, an application corresponding to the first file, a file type of the first file, and first attribute information corresponding to the file type, the first attribute information corresponding to the file type being obtained based on second attribute information corresponding to all files of the file type on which the write operation processing have been performed in response to the respective write messages of the application;
• predict a stream identification information corresponding to the first file by using a file classifier based on the application corresponding to the first file, the file type of the first file and the first attribute information corresponding to the file type, the file classifier being a trained machine learning model;
• and
• send a writing command carrying the stream identification information to the storage device to cause the storage device to write the first file into a storage block corresponding to the stream identification information.