20150199268 | DATA PLACEMENT BASED ON DATA RETENTION IN A TIERED STORAGE DEVICE SYSTEM - A method for managing flash memory is provided. The method includes determining at least one property of a data and determining to which type of a plurality of types of flash memory to write the data, based on the at least one property of the data. The plurality of types of flash memory includes at least two types of flash memory having differing numbers of bits per cell. The method includes writing the data to a flash memory of the determined type. A nonvolatile memory manager and a system are provided. | 07-16-2015 |