Abstract: The appearance of solid-state drive(SSl))incurs exciting changes in the architecture of computer storage sub-systems and SSD has become the main storage devices for embedded application, gradually. But the bottle neck problem of "erase before write" in NANI)based SSl)and its lifetime are the most important issues in today's SSl)design. This paper presented the algorithm,LRU-AB(access-based) by considering the access frequency to improve the performance of write operations. Meantime, we also discussed some existing algorithms for this area.

Key words: Solid-state drive, FTL,Cache,Replacement algorithm