Data storage device read threshold adjustment according to environmental parameters

A storage device comprising:

• a non-volatile memory comprising a plurality of non-volatile solid-state memory cells;
• and
• a controller configured to determine a plurality of read thresholds associated with retrieving data stored in the plurality of non-volatile solid-state memory cells, the controller further configured to:
• group at least some of the plurality of solid-state memory cells into a plurality of groups based on one or more values of an environmental parameter at one or more times of storing data in the at least some of the plurality of solid-state memory cells;
• prior to commencement of a future read threshold determination cycle, identify a forecast of the environmental parameter for the future read threshold determination cycle for a group of the plurality of groups of solid-state memory cells, wherein the forecast includes a predicted environmental parameter value at a future time;
• and
• selectively perform read threshold calibration on the solid-state memory cells of the group of solid-state memory cells based on the forecast of the environmental parameter to determine at least one read threshold for the group and utilize the determined at least one read threshold when reading data stored in at least one solid-state memory cell of the group.

A method of operating a storage device comprising a plurality of non-volatile solid-state memory cells and a controller, the method comprising, by the controller:

• grouping at least some of the plurality of solid-state memory cells into a plurality of groups based on one or more values of an environmental parameter at one or more times of storing data in the at least some of the plurality of solid-state memory cells;
• prior to commencement of a future read threshold determination cycle, identifying a forecast of the environmental parameter for the future read threshold determination cycle for a group of the plurality of groups of solid-state memory cells, wherein the forecast includes a predicted environmental parameter value at a future time;
• and
• selectively performing read threshold calibration on the solid-state memory cells of the group of solid-state memory cells based on the forecast of the environmental parameter to determine at least one read threshold for the group and utilize the determined at least one read threshold when reading data stored in at least one solid-state memory cell of the group.