Self-trimming of data stored in non-volatile memory using data storage controller

A data storage controller for controlling a non-volatile memory (NVM) device, comprising:

• a data stream storage controller configured to store a stream of data obtained from a host device in the NVM device;
• a time-based parameter storage controller configured to store time-based parameters corresponding to portions of the stream of data;
• a data expiration controller configured to identify portions of the stream of data stored within the NVM device that have expired;
• and
• a trim controller configured to trim the portions of the stream of data that have expired.

A data storage system, comprising:

• a non-volatile memory (NVM) device;
• and
• a data storage controller having a processor configured to
• store a stream of input data obtained from a host device in the NVM device,
• store time-based parameters corresponding to portions of the stream of data,
• identify portions of the stream of data stored within the NVM device that are older than a maximum permissible age, and
• trim the portions of the stream of data stored in the NVM device identified as older than the maximum permissible age.

An apparatus for controlling a non-volatile memory (NVM) device, comprising:

• means for storing an input stream of data in the NVM device;
• means for storing data expiration parameters corresponding to portions of the input stream of data;
• means for identifying portions of the input stream of data stored within the NVM device that have expired based on the data expiration parameters;
• and
• means for trimming the portions of the stream of data stored in the NVM device that have expired.