A Locality-based Address Remapping Strategy for NAND Flash Memory
Date Issued
2014
Date
2014
Author(s)
Chang, Yu-Cheng
Abstract
Address mapping for flash storage devices has been a challenging design problem for controllers
because of the rapidly growing device capacity. On the other hand, the increasing
number of chips bring about difficulties in design management of flash storage devices. In
contrast to existing address mapping designs that focuses on improving caching mechanism
efficiency, we propose a locality-based address remapping strategy to further utilize
the parallelism to improve the performance and reduce unnecessary data write imposed
by the improper data allocation. The experiments were conducted based on representative
realistic workloads to evaluate the efficacy of the proposed scheme. The results reveal
that the proposed management can not only improve the performance but also extend the
endurance of the flash storage device.
Subjects
儲存系統
快閃記憶體
效能
存取行為
位址映射
Type
thesis
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