Answer:
tracks which physical block contains only valid pages.
Step-by-step explanation:
Flash translation layer or FTL is a system made up of software and hardware that manages solid-state drive or SSD operations. It implements data concurrency techniques like striping, interleaving, and pipelining to generate a high throughput. It also performs logical to physical addressing amongst other functionalities.
The FTL also tracks which physical block in the memory that contains only valid pages by performing a bad block management process, isolating and discarding the blocks with no valid pages