Systems and methods of compressing data

A data storage device comprising:

• a controller;
• and
• a memory coupled to the controller and having single level cells storing first data associated with a first write command from an access device and associated with information from the access device indicating whether the first data is compressible,
• wherein the controller is configured to:
• perform a comparison of a first context identifier associated with a first context and included with the first write command and a second context identifier associated with a second context and included with a second write command from the access device, the first context identifier assigned by the accessing device to indicate a first operational context associated with the first data within the accessing device, the second context identifier assigned by the accessing device to indicate a second operational context associated with second data within the accessing device;
• and
• write compressed data to multilevel cells of the memory if the first context identifier matches the second context identifier, the compressed data generated by compressing a compression group of data including at least one of the first data or second data corresponding to the second write command.

A method comprising:

• at a data storage device that includes a controller and a memory having single level cells to store information associated with an indicator from an accessing device indicating whether the information is compressible and associated with a context identifier included with a command from the accessing device, the context identifier assigned by the accessing device to indicate an operational context associated with the information within the accessing device operational context associated with second data within the accessing device, performing:
• in response to a read command from the accessing device and associated with a particular memory address, determining, based on mapping information that maps memory addresses of multilevel cells of the memory to group identifiers associated with compression groups of data, whether the particular memory address is associated with any of the group identifiers;
• and
• if the particular memory address is associated with a group identifier:
• determining a set of memory addresses corresponding to a compression group of data identified by the group identifier, the set of memory addresses including the particular memory address and one or more additional memory addresses;
• performing a read operation to read compressed data from a set of storage elements of the memory, the set of storage elements corresponding to the set of memory addresses;
• and
• generating decompressed data corresponding to the compressed data.

An apparatus comprising:

• means for storing information, the means for storing having single level cells configured to store first data associated with a first write command from means for providing access to the means for storing and associated with information from the means for providing access indicating whether the first data is compressible;
• and
• means for controlling the means for storing,
• wherein the means for controlling is configured to:
• perform a comparison of a first context identifier associated with a first context and included with the first write command and a second context identifier associated with a second context and included with a second write command from the means for providing access, the first context identifier assigned by the means for providing access to indicate a first operational context associated with the first data within the means for providing access, the second context identifier assigned by the means for providing access to indicate a second operational context associated with the second data within the means for providing access;
• and
• write compressed data to multilevel cells of the means for storing if the first context identifier matches the second context identifier, the compressed data generated by compressing a compression group of data including at least one of the first data or second data corresponding to the second write command.