Data Parking for SSDs with Streams

A storage device, comprising:

• a non-volatile storage unit, wherein a capacity of the non-volatile storage unit is divided into a plurality of streams, and wherein the non-volatile storage unit comprises a plurality of dies, each of the plurality of dies comprising a plurality of erase blocks, and wherein the non-volatile storage unit comprises one or more dedicated data parking sections, wherein a dedicated stream of the plurality of streams is a dedicated data parking section for storing XOR or parity data for each of the plurality of streams;
• a first volatile memory unit;
• and
• a controller coupled to the first volatile memory unit and the non-volatile storage unit, the controller comprising a second volatile memory unit, wherein the controller is configured to:
• receive a first write command corresponding to a first stream within a plurality of streams;
• generate XOR or parity data associated with the first stream, the XOR or parity data corresponding to the first write command;
• copy the XOR or parity data to a first location in the dedicated data parking section;
• copy the XOR or parity data to a first location in the second volatile memory unit;
• and
• copy the XOR or parity data to a second location in the dedicated data parking section.

A storage device, comprising:

• a non-volatile storage unit, wherein a capacity of the non-volatile storage unit is divided into a plurality of streams, wherein the non-volatile storage unit comprises a plurality of dies, each of the plurality of dies comprising a plurality of erase blocks, and wherein a dedicated stream of the plurality of streams is a dedicated data parking section for storing XOR or parity data for each of the plurality of streams;
• a first volatile memory unit;
• and
• a controller coupled to the non-volatile storage unit and the first volatile memory unit, wherein the controller is configured to:
• receive one or more write commands associated with one or more streams of the plurality of streams;
• generate XOR or parity data associated with the one or more streams for each of the one or more write commands in the first volatile memory unit;
• copy the XOR or parity data associated with the one or more streams from the first volatile memory unit to the dedicated data parking section sequentially;
• copy previously generated XOR or parity data associated with the one or more streams from the dedicated data parking section to the first volatile memory unit when one or more additional write commands are received to write data to the one or more streams;
• update the previously generated XOR or parity data for each of the one or more additional write commands in the first volatile memory unit;
• and
• copy the updated previously generated XOR or parity data for each of the one or more additional write commands to the dedicated data parking section sequentially.