Presentation	2014-07-29 Cache Scheme Optimized to Access Behavior of Flash SSDs Shugo OGAWA,
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Abstract(in English)	Many FTL (Flash Translation Layer) schemes has been proposed to increase performance of SSDs (Solid State Drives) on random writes. These schemes store random writes as Log-structured manner. However, the capacity of cache memory and NAND Flash available for these schemes are usually small because of the limitation of hardware resources in SSDs. To avoid this limitation, this paper introduces a new cache scheme called Self-Caching Flash (SCF) for random writes. SCF uses a small part of each SSD as a write cache controlled by a host. Evaluation results show that SCF reduces write accesses up to 20% and erase operations up to 25% on NAND Flash in SSDs with random write workload.
Keyword(in Japanese)	(See Japanese page)
Keyword(in English)	SSD / NAND Flash / Random Write / Cache / FTL / Log-Structured
Paper #	CPSY2014-24
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Conference Information
Committee	CPSY
Conference Date	2014/7/21(1days)
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Paper Information
Registration To	Computer Systems (CPSY)
Language	JPN
Title (in Japanese)	(See Japanese page)
Sub Title (in Japanese)	(See Japanese page)
Title (in English)	Cache Scheme Optimized to Access Behavior of Flash SSDs
Sub Title (in English)
Keyword(1)	SSD
Keyword(2)	NAND Flash
Keyword(3)	Random Write
Keyword(4)	Cache
Keyword(5)	FTL
Keyword(6)	Log-Structured
1st Author's Name	Shugo OGAWA
1st Author's Affiliation	Green Platform Research Laboratories, NEC Corporation()
Date	2014-07-29
Paper #	CPSY2014-24
Volume (vol)	vol.114
Number (no)	155
Page	pp.pp.-
#Pages	6
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