Configuration parameter management for non-volatile data storage

An apparatus comprising:

• a control module configured to program and erase blocks of a non-volatile storage medium such that variation of a program/erase cycle count for the blocks remains within a predetermined range;
• a block classification module configured to group the blocks of the non-volatile storage medium based on retention times for the blocks, wherein the blocks are grouped using larger ranges of retention times for groups associated with larger retention times;
• a configuration parameter update module configured to determine a new configuration parameter for at least one of the groups of blocks in response to a change in the program/erase cycle count, the new configuration parameter comprising a voltage parameter;
• and
• a block access module configured to access the at least one group of blocks using the new configuration parameter,
• wherein the control module, the block classification module, the configuration parameter update module, and the block access module comprise one or more of logic hardware and executable code, the executable code stored on a non-transitory computer readable medium.

A system comprising:

• a non-volatile storage device comprising a non-volatile storage medium;
• and
• a controller for the non-volatile storage device, that
• programs and erases blocks of the non-volatile storage medium such that variation of a program/erase cycle count for the blocks remains within a predetermined range;
• groups the blocks of the non-volatile storage medium based on retention times for the blocks, wherein the blocks are grouped using larger ranges of retention times for groups associated with larger retention times;
• determines a new configuration parameter for at least one of the groups of blocks in response to a change in the program/erase cycle count, the new configuration parameter comprising a voltage parameter;
• and
• accesses the at least one group of blocks using the new configuration parameter.