Memory system for tailoring data, host system for controlling the memory system, and operation method of the memory system

A host system comprising:

• memory having computer readable instructions stored thereon;
• and
• processing circuitry configured to execute the computer readable instructions to cause the host system to,
• split a data stream into a plurality of split data streams;
• determine whether the plurality of split data streams are mergeable in the host system based on a mergeability condition associated with each split data stream of the plurality of split data streams, the mergeability condition indicating whether a respective split data stream of the plurality of split data streams can be split into a plurality of smaller data streams or not;
• group unmergeable first data streams among the plurality of split data streams;
• merge mergeable second data streams among the plurality of split data streams;
• and
• control at least one storage device to,
• store all of the grouped first data streams in a first region of the at least one storage device corresponding to at least one volatile memory device included in the at least one storage device, and
• store all of the merged second data streams in a second region corresponding to at least one non-volatile memory device included in the at least one storage device.

An operation method of a memory system, the operation method comprising:

• splitting, in a host system, a data stream into a plurality of split data streams;
• determining whether the plurality of split data streams are mergeable in the host system based on a mergeability condition associated with each split data stream of the plurality of split data streams, the mergeability condition indicating whether a respective split data stream of the plurality of split data streams can be split into a plurality of smaller data streams or not;
• grouping, in the host system, all unmergeable first data streams among the plurality of split data streams;
• merging, in the host system, all mergeable second data streams among the plurality of split data streams;
• transmitting a request to allocate at least two storage regions to a storage device, the storage device including at least one volatile memory device and at least one non-volatile memory device, the at least two storage regions including a first region and a second region, the first region corresponding to the at least one volatile memory device, and the second region corresponding to the at least one non-volatile memory device;
• and
• transmitting the grouped first data streams and the merged second data streams to the storage device, the transmitting causing the storage device to store the grouped first data streams in the first region, and store the merged second data streams in the second region.