Data aggregation in ZNS drive

A data storage device, comprising:

• an interface coupled to a host device;
• a memory device having a plurality of memory dies, the plurality of memory dies comprising a plurality of blocks associated with a plurality of zones;
• a plurality of channels, each channel being coupled to one or more memory dies of the plurality of memory dies;
• and
• a controller coupled to the memory device and the interface, the controller comprising an append write buffer, wherein the controller is configured to:
• receive first zone append commands associated with a first zone of the plurality of zones;
• receive second zone append commands associated with a second zone of the plurality of zones;
• fetch and aggregate one or more first chunks of first zone append command data until a first programming chunk is filled to a predetermined programming chunk size in the append write buffer;
• simultaneously, fetch and aggregate one or more second chunks of second zone append command data until a second programming chunk is filled to the predetermined programming chunk size in the append write buffer;
• write the first programming chunk to a first block of the plurality of blocks associated with the first zone using a first channel of the plurality of channels;
• and
• write the second programming chunk to a second block of the plurality of blocks associated with the second zone using a second channel of the plurality of channels,
• wherein the plurality of memory dies comprise a plurality of blocks associated with the plurality of zones, and each zone utilizes a separate channel of the plurality of channels to access the plurality of blocks associated with each zone.

A data storage device, comprising:

• a memory device having a plurality of memory dies, the plurality of memory dies comprising a plurality of blocks associated with a plurality of zones;
• a plurality of channels, each channel being coupled to one or more memory dies of the plurality of memory dies;
• means for receiving a plurality of zone append commands, each zone append command being associated with a zone identification identifying a zone of a plurality of zones;
• means for fetching data from a host device for each zone append command;
• means for aggregating the fetched data by the zone identification associated with each zone append command in an append write buffer, the append write buffer being stored in a controller, the fetched data being aggregated into separate programming chunks for each zone identified;
• means for writing the aggregated data to the memory device upon the aggregated data for each zone reaching a predetermined programming chunk size using one or more channels of the plurality of channels in parallel;
• and
• means for writing the aggregated data to a temporary block of a memory die of the plurality of memory dies upon the aggregated data for each zone failing to reach the predetermined programming chunk size,
• wherein the plurality of memory dies comprise a plurality of blocks associated with the plurality of zones, and each zone utilizes a separate channel of the plurality of channels to access the plurality of blocks associated with each zone.