FDP – Flexible Data Placement.  FDP allows the placement of different data in separate NAND blocks within an SSD. In a conventional SSD all data written to the drive at a similar time will be stored in the same NAND blocks. When any of that data is either invalidated by a new write or unmapped then the flash translation layer (FTL) needs to do garbage collection (GC) in order to recover physical space. In a data placement SSD data can be separated during host writes allowing for whole NAND blocks to be invalidated or unmapped at once by the host.