Dynamic Adjustment of Storage Class Memory Capacity in Memory-Resource Disaggregated Hybrid Storage With SCM and NAND Flash Memory

2019 ◽  
Vol 27 (8) ◽  
pp. 1799-1810 ◽  
Author(s):  
Chihiro Matsui ◽  
Ken Takeuchi
Keyword(s):  
Flash Memory ◽  
Memory Capacity ◽  
Nand Flash ◽  
Dynamic Adjustment ◽  
Nand Flash Memory ◽  
Hybrid Storage ◽  
Storage Class Memory ◽  
Memory Resource

scholarly journals Flash-Aware Page Replacement Algorithm

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Guangxia Xu ◽  
Lingling Ren ◽  
Yanbing Liu
Keyword(s):  
Flash Memory ◽  
Main Memory ◽  
Consumer Electronics ◽  
Storage Device ◽  
Cost Ratio ◽  
Nand Flash ◽  
Nand Flash Memory ◽  
Selection Scheme ◽  
Replacement Algorithm ◽  
Memory Resource

Due to the limited main memory resource of consumer electronics equipped with NAND flash memory as storage device, an efficient page replacement algorithm called FAPRA is proposed for NAND flash memory in the light of its inherent characteristics. FAPRA introduces an efficient victim page selection scheme taking into account the benefit-to-cost ratio for evicting each victim page candidate and the combined recency and frequency value, as well as the erase count of the block to which each page belongs. Since the dirty victim page often contains clean data that exist in both the main memory and the NAND flash memory based storage device, FAPRA only writes the dirty data within the victim page back to the NAND flash memory based storage device in order to reduce the redundant write operations. We conduct a series of trace-driven simulations and experimental results show that our proposed FAPRA algorithm outperforms the state-of-the-art algorithms in terms of page hit ratio, the number of write operations, runtime, and the degree of wear leveling.

Design of Hybrid SSDs With Storage Class Memory and NAND Flash Memory

2017 ◽  
Vol 105 (9) ◽  
pp. 1812-1821 ◽  
Author(s):  
Chihiro Matsui ◽  
Chao Sun ◽  
Ken Takeuchi
Keyword(s):  
Flash Memory ◽  
Nand Flash ◽  
Nand Flash Memory ◽  
Storage Class Memory
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