Systems and methods for managing an artificially limited logical space of non-volatile memory

A system, comprising:

• non-volatile memory comprising a plurality of dies, each of the plurality of dies comprising at least two planes, and each of the at least two planes comprising a plurality of physical blocks;
• and
• control circuitry configured to:
• classify the plurality of dies as a physical space array of bands and die-in-planes (dips), wherein a physical block exists at each intersection of a band and a dip, and wherein a native number of dips exist in each band of the physical space array;
• define a native logical space that includes a plurality of native logical bands that logically overlay and represent the physical space array, wherein the native logical bands are used for managing relatively high volume data writes, and wherein each the plurality of native logical bands are operative to write data to the native number of dips;
• define an artificially limited logical space that includes a plurality of artificially limited logical bands that exist outside of the native logical space, wherein the artificially limited logical bands are used for managing relatively low volume data writes, and wherein each of the artificially limited logical bands is operative to write data to a limited number of dips that is less than the native number of dips;
• use the native logical space to write the relatively high volume data to the non-volatile memory;
• and
• use the artificially limited logical space to write relatively low volume data to the non-volatile memory.

A method implemented in a system comprising non-volatile memory, the method comprising:

• defining a native logical space comprising a first plurality of logical bands each comprising a first number of logical blocks, wherein the logical blocks in each of the first plurality of logical blocks are configured to be mapped to a second number of physical blocks;
• defining an artificially limited logical space comprising a second plurality of logical bands each comprising the first number of logical blocks, wherein a first portion of the logical blocks in each of the second plurality of logical bands are mapped to a third number of physical blocks, wherein a second portion of the logical blocks in each of the second plurality of logical bands are marked as do not use blocks, and wherein the third number of physical blocks is less than the second number of physical blocks;
• using the native logical space to write relatively high volume data to the non-volatile memory;
• and
• using the artificially limited logical space to write relatively low volume data to the non-volatile memory.