Ahmednagar,

electronic devices like mobile, cameras, iPODS, music players, is also used as an alternative storage medium for Hard Disk Drives (HDD) in PCs and Labtops. Though Flash has a faster access and is a good alternative storage media for HDD. NAND flash memory has many advantageous features as a storage medium, such as superior performance, shock resistance, and low power consumption. However, the erase-before-write nature and the limited number of write/erase cycles are obstacles to the promising future of NAND flash memory. An intermediate software layer called Flash Translation Layer (FTL) is used to overcome these obstacles. Various trade offs arises in the design of FTLs, depending upon the various address mapping schemes used for logical to physical address translation. Various researchers have invented different FTL design to optimize the performance while achieving the objectives and goals. This paper takes a review of all these FTL schemes and presents an innovative idea to improve the performance of the FTL presented earlier. 1