Key Value Data Storage Device With Tiers

A data storage device, comprising:

• a memory device;
• and
• a controller coupled to the memory device, wherein the controller is configured to:
• receive first KV pair data from a host device, wherein KV pair data includes a key and a value;
• classify the received first KV pair data as a first tier;
• program the received first KV pair data to a first flash management unit (FMU), wherein the received first KV pair is less than a full size of a FMU;
• receive second KV pair data from the host device;
• classify the second KV pair data as a second tier, wherein the second tier has a lower performance requirement than the first tier;
• and
• program at least a portion of the second KV pair data in an FMU that has KV pair data classified as the first tier previously stored in the FMU.

A data storage device, comprising:

• memory means;
• and
• a controller coupled to the memory means, wherein the controller is configured to:
• program data associated with a second tier to one or more FMUs, wherein:
• the one or more flash management units (FMUs) comprises key value (KV) pair data associated with a first tier;
• the first tier has a higher performance requirement than the second tier;
• and
• the data associated with the second tier is utilized as padding data.