Abstract:NAND Flash memory storage is widely used in computing systems. In General, there exists mismatch between logical address and physical address in Flash storage, and these address translations are managed by Flash Translation Layer (FTL). Due to its management, logically invalid data is considered as physically valid at some parts in Flash device, which causes additional overhead. The physically valid area being logically invalid area can be invalidated by TRIM or discard command, however, too many discard comma… Show more
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