KAST: K-Associative Sector Translation for NAND Flash Memory in Real-Time Systems

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Provided by: edaa
Topic: Storage
Format: PDF
Flash memory is a good candidate for the storage device in real-time systems due to its non-fluctuating performance, low power consumption and high shock resistance. However, the garbage collection for invalid pages in flash memory can invoke a long blocking time. Moreover, the worst-case blocking time is significantly long compared to the best-case blocking time under the current flash management techniques. In this paper, the authors propose a novel Flash Translation Layer (FTL), called KAST, where user can configure the maximum log block associativity to control the worst-case blocking time.
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