Use of a logical-to-logical translation map and a logical-to-physical translation map to access a data storage device

A computer program product, the computer program product comprising a non-transitory computer-readable storage medium and storing executable code that, when executed by at least one data processing apparatus, is configured to cause the at least one data processing apparatus to perform a method comprising:

• store, by a host device, a first translation map for converting a logical sector to a logical erase unit and a physical page;
• receive, by a memory controller of a data storage device, a second translation map from the host device, the second translation map for converting a logical erase unit to a physical erase unit within the data storage device, wherein the data storage device includes a plurality of flash memory devices and the memory controller operationally coupled with the flash memory devices, each of the flash memory devices being arranged into a plurality of erase units, each of the erase units having a plurality of pages for storing data;
• and
• store, by the memory controller, the second translation map in a memory module on the data storage device.

A method performed by a system that includes a host device and a data storage device, the data storage device including a plurality of flash memory devices and a memory controller operationally coupled with the flash memory devices, each of the flash memory devices being arranged into a plurality of erase units, each of the erase units having a plurality of pages for storing data, the method comprising:

• storing;
• a first translation map for converting a logical sector to a logical erase unit;
• receiving, by the memory controller, a second translation map from the host device, the second translation map for converting a logical erase unit to a physical erase unit within the flash memory devices;
• and
• storing the second translation map in a memory module on the data storage device.