Log-based storage for different data types in non-volatile memory

A method comprising:

• classifying data by log type at a file system level;
• storing the data in one of a first portion of memory and a second portion of memory based on the classification, wherein the first portion of memory comprises single-level cells configured to store one bit per non-volatile memory cell and the second portion of memory comprises multi-level cells configured to store multiple bits per non-volatile memory cell;
• and
• performing a first garbage collection operation in the first portion of memory in response to a request from a file system and a second garbage collection operation in the second portion of memory based on entries for the second portion of memory in a flash translation layer, wherein performing the first garbage collection operation comprises receiving a discard command and erasing a data block without relocating data.

An apparatus comprising:

• means for storing data in separate storage spaces based on a log type;
• means for reclaiming a first portion of memory in a first storage space associated with a first type for the log type, wherein the means for reclaiming the first portion of memory receives a discard command and erases a data block without relocating data;
• and
• means for reclaiming a second portion of memory in a second storage space associated with a second type for the log type,
• wherein the first portion of memory comprises single-level cells configured to store one bit per non-volatile memory cell and the second portion of memory comprises multi-level cells configured to store multiple bits per non-volatile memory cell.