Data storage system and method of managing metadata thereof

A method of operating a data storage system, the method comprising:

• allocating a first sub-metadata area, partitioned from metadata areas included in a plurality of memory devices, to a host device to which a partial data storage area of data storage areas included in the plurality of memory devices is allocated, among a plurality of host devices, based on initial setting information;
• generating a partition table including partition information of the metadata area;
• changing a size and a location of the first sub-metadata area based on at least one of health information of the plurality of memory devices and a metadata area setting request;
• updating the partition table in response to the changed first sub-metadata area;
• and
• performing a migration operation on metadata stored in the first sub-metadata area.

A data storage system comprising a plurality of memory devices, wherein the data storage system is configured to:

• allocate a first sub-metadata area, partitioned from metadata areas included in the plurality of memory devices, to a host device to which a partial data area among data storage areas included in the plurality of memory devices is allocated, among a plurality of host devices, based on initial setting information;
• generate a partition table including partition information of the metadata area;
• change a size and a location of the first sub-metadata area based on at least one of health information of the plurality of memory devices and a metadata area setting request;
• update the partition table in response to the changed first sub-metadata area;
• and
• perform a migration operation on metadata stored in the first sub-metadata area.