NAND flash storage device and methods using non-NAND storage cache

A method, comprising:

• obtaining write data from a remote host for storage in a NAND flash memory device of a solid state storage device;
• storing the write data in a non-NAND cache of the solid state storage device;
• and
• transferring the write data from the non-NAND cache to the NAND flash memory device when a predefined storage criterion is satisfied, wherein the NAND flash memory device comprises a plurality of die and wherein the predefined storage criterion comprises a storage unit of the write data stored in the non-NAND cache, wherein the storage unit comprises a block of data on each of the plurality of die, and wherein the block of data on each of the plurality of die is erased in a single garbage collection cycle.

A computer program product, comprising a non-transitory processor-readable storage medium having stored therein program code of one or more software programs, wherein the program code when executed by at least one processing platform causes the at least one processing platform to implement the following steps:

• obtaining write data from a remote host for storage in a NAND flash memory device of a solid state storage device;
• storing the write data in a non-NAND cache of the solid state storage device;
• and
• transferring the write data from the non-NAND cache to the NAND flash memory device when a predefined storage criterion is satisfied, wherein the NAND flash memory device comprises a plurality of die and wherein the predefined storage criterion comprises a storage unit of the write data stored in the non-NAND cache, wherein the storage unit comprises a block of data on each of the plurality of die, and wherein the block of data on each of the plurality of die is erased in a single garbage collection cycle.