Analysis of Performance for NAND Flash Based SSDs via Using Host Semantic Information

Jaeho KIM; Jung Kyu PARK

doi:10.1587/transinf.2017EDL8056

Analysis of Performance for NAND Flash Based SSDs via Using Host Semantic Information

Jaeho KIM, Jung Kyu PARK

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The use of flash memory based storage devices is rapidly increasing, and user demands for high performance are also constantly increasing. The performance of the flash storage device is greatly influenced by cleaning operations of Flash Translation Layer (FTL). Various studies have been conducted to lower the cost of cleaning operations. However, there are limits to achieve sufficient performance improvement of flash storages without help of a host system, with only limited information in storage devices. Recently, SCSI, eMMC, and UFS standards provide an interface for sending semantic information from a host system to a storage device. In this paper, we analyze effects of semantic information on performance and lifetime of flash storage devices. We evaluate performance and lifetime improvement through SA-FTL (Semantic Aware Flash Translation Layer), which can take advantage of semantic information in storage devices. Experiments show that SA-FTL improves performance and lifetime of flash based storages by up to 30 and 35%, respectively, compared to a simple page-level FTL.

Publication: IEICE TRANSACTIONS on Information Vol.E100-D No.8 pp.1907-1910

Publication Date: 2017/08/01

Publicized: 2017/05/12

Online ISSN: 1745-1361

DOI: 10.1587/transinf.2017EDL8056

Type of Manuscript: LETTER

Category: Data Engineering, Web Information Systems

Authors

Jaeho KIM
UNIST
Jung Kyu PARK
Seoul Women's University

Keyword

NAND flash memory, Flash Translation Layer (FTL), storage system, performance

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Jaeho KIM, Jung Kyu PARK, "Analysis of Performance for NAND Flash Based SSDs via Using Host Semantic Information" in IEICE TRANSACTIONS on Information, vol. E100-D, no. 8, pp. 1907-1910, August 2017, doi: 10.1587/transinf.2017EDL8056.
Abstract: The use of flash memory based storage devices is rapidly increasing, and user demands for high performance are also constantly increasing. The performance of the flash storage device is greatly influenced by cleaning operations of Flash Translation Layer (FTL). Various studies have been conducted to lower the cost of cleaning operations. However, there are limits to achieve sufficient performance improvement of flash storages without help of a host system, with only limited information in storage devices. Recently, SCSI, eMMC, and UFS standards provide an interface for sending semantic information from a host system to a storage device. In this paper, we analyze effects of semantic information on performance and lifetime of flash storage devices. We evaluate performance and lifetime improvement through SA-FTL (Semantic Aware Flash Translation Layer), which can take advantage of semantic information in storage devices. Experiments show that SA-FTL improves performance and lifetime of flash based storages by up to 30 and 35%, respectively, compared to a simple page-level FTL.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.2017EDL8056/_p

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@ARTICLE{e100-d_8_1907,
author={Jaeho KIM, Jung Kyu PARK, },
journal={IEICE TRANSACTIONS on Information},
title={Analysis of Performance for NAND Flash Based SSDs via Using Host Semantic Information},
year={2017},
volume={E100-D},
number={8},
pages={1907-1910},
abstract={The use of flash memory based storage devices is rapidly increasing, and user demands for high performance are also constantly increasing. The performance of the flash storage device is greatly influenced by cleaning operations of Flash Translation Layer (FTL). Various studies have been conducted to lower the cost of cleaning operations. However, there are limits to achieve sufficient performance improvement of flash storages without help of a host system, with only limited information in storage devices. Recently, SCSI, eMMC, and UFS standards provide an interface for sending semantic information from a host system to a storage device. In this paper, we analyze effects of semantic information on performance and lifetime of flash storage devices. We evaluate performance and lifetime improvement through SA-FTL (Semantic Aware Flash Translation Layer), which can take advantage of semantic information in storage devices. Experiments show that SA-FTL improves performance and lifetime of flash based storages by up to 30 and 35%, respectively, compared to a simple page-level FTL.},
keywords={},
doi={10.1587/transinf.2017EDL8056},
ISSN={1745-1361},
month={August},}

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TY - JOUR
TI - Analysis of Performance for NAND Flash Based SSDs via Using Host Semantic Information
T2 - IEICE TRANSACTIONS on Information
SP - 1907
EP - 1910
AU - Jaeho KIM
AU - Jung Kyu PARK
PY - 2017
DO - 10.1587/transinf.2017EDL8056
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E100-D
IS - 8
JA - IEICE TRANSACTIONS on Information
Y1 - August 2017
AB - The use of flash memory based storage devices is rapidly increasing, and user demands for high performance are also constantly increasing. The performance of the flash storage device is greatly influenced by cleaning operations of Flash Translation Layer (FTL). Various studies have been conducted to lower the cost of cleaning operations. However, there are limits to achieve sufficient performance improvement of flash storages without help of a host system, with only limited information in storage devices. Recently, SCSI, eMMC, and UFS standards provide an interface for sending semantic information from a host system to a storage device. In this paper, we analyze effects of semantic information on performance and lifetime of flash storage devices. We evaluate performance and lifetime improvement through SA-FTL (Semantic Aware Flash Translation Layer), which can take advantage of semantic information in storage devices. Experiments show that SA-FTL improves performance and lifetime of flash based storages by up to 30 and 35%, respectively, compared to a simple page-level FTL.
ER -