IEICE TRANSACTIONS on Information
An Empirical Study of FTL Performance in Conjunction with File System Pursuing Data Integrity
Summary :
Due to the detachability of Flash storage, which is a dominant portable storage, data integrity stored in Flash storages becomes an important issue. This study considers the performance of Flash Translation Layer (FTL) schemes embedded in Flash storages in conjunction with file system behavior that pursue high data integrity. To assure extreme data integrity, file systems synchronously write all file data to storage accompanying hot write references. In this study, we concentrate on the effect of hot write references on Flash storage, and we consider the effect of absorbing the hot write references via nonvolatile write cache on the performance of the FTL schemes in Flash storage. In so doing, we quantify the performance of typical FTL schemes for a realistic digital camera workload that contains hot write references through experiments on a real system environment. Results show that for the workload with hot write references FTL performance does not conform with previously reported studies. We also conclude that the impact of the underlying FTL schemes on the performance of Flash storage is dramatically reduced by absorbing the hot write references via nonvolatile write cache.
- Publication
- IEICE TRANSACTIONS on Information Vol.E93-D No.8 pp.2302-2305
- Publication Date
- 2010/08/01
- Publicized
- Online ISSN
- 1745-1361
- DOI
- 10.1587/transinf.E93.D.2302
- Type of Manuscript
- LETTER
- Category
- Software System
Authors
Keyword
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In Hwan DOH, Myoung Sub SHIM, Eunsam KIM, Jongmoo CHOI, Donghee LEE, Sam H. NOH, "An Empirical Study of FTL Performance in Conjunction with File System Pursuing Data Integrity" in IEICE TRANSACTIONS on Information,
vol. E93-D, no. 8, pp. 2302-2305, August 2010, doi: 10.1587/transinf.E93.D.2302.
Abstract: Due to the detachability of Flash storage, which is a dominant portable storage, data integrity stored in Flash storages becomes an important issue. This study considers the performance of Flash Translation Layer (FTL) schemes embedded in Flash storages in conjunction with file system behavior that pursue high data integrity. To assure extreme data integrity, file systems synchronously write all file data to storage accompanying hot write references. In this study, we concentrate on the effect of hot write references on Flash storage, and we consider the effect of absorbing the hot write references via nonvolatile write cache on the performance of the FTL schemes in Flash storage. In so doing, we quantify the performance of typical FTL schemes for a realistic digital camera workload that contains hot write references through experiments on a real system environment. Results show that for the workload with hot write references FTL performance does not conform with previously reported studies. We also conclude that the impact of the underlying FTL schemes on the performance of Flash storage is dramatically reduced by absorbing the hot write references via nonvolatile write cache.
URL: https://global.ieice.org/en_transactions/information/10.1587/transinf.E93.D.2302/_p
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@ARTICLE{e93-d_8_2302,
author={In Hwan DOH, Myoung Sub SHIM, Eunsam KIM, Jongmoo CHOI, Donghee LEE, Sam H. NOH, },
journal={IEICE TRANSACTIONS on Information},
title={An Empirical Study of FTL Performance in Conjunction with File System Pursuing Data Integrity},
year={2010},
volume={E93-D},
number={8},
pages={2302-2305},
abstract={Due to the detachability of Flash storage, which is a dominant portable storage, data integrity stored in Flash storages becomes an important issue. This study considers the performance of Flash Translation Layer (FTL) schemes embedded in Flash storages in conjunction with file system behavior that pursue high data integrity. To assure extreme data integrity, file systems synchronously write all file data to storage accompanying hot write references. In this study, we concentrate on the effect of hot write references on Flash storage, and we consider the effect of absorbing the hot write references via nonvolatile write cache on the performance of the FTL schemes in Flash storage. In so doing, we quantify the performance of typical FTL schemes for a realistic digital camera workload that contains hot write references through experiments on a real system environment. Results show that for the workload with hot write references FTL performance does not conform with previously reported studies. We also conclude that the impact of the underlying FTL schemes on the performance of Flash storage is dramatically reduced by absorbing the hot write references via nonvolatile write cache.},
keywords={},
doi={10.1587/transinf.E93.D.2302},
ISSN={1745-1361},
month={August},}
Copy
TY - JOUR
TI - An Empirical Study of FTL Performance in Conjunction with File System Pursuing Data Integrity
T2 - IEICE TRANSACTIONS on Information
SP - 2302
EP - 2305
AU - In Hwan DOH
AU - Myoung Sub SHIM
AU - Eunsam KIM
AU - Jongmoo CHOI
AU - Donghee LEE
AU - Sam H. NOH
PY - 2010
DO - 10.1587/transinf.E93.D.2302
JO - IEICE TRANSACTIONS on Information
SN - 1745-1361
VL - E93-D
IS - 8
JA - IEICE TRANSACTIONS on Information
Y1 - August 2010
AB - Due to the detachability of Flash storage, which is a dominant portable storage, data integrity stored in Flash storages becomes an important issue. This study considers the performance of Flash Translation Layer (FTL) schemes embedded in Flash storages in conjunction with file system behavior that pursue high data integrity. To assure extreme data integrity, file systems synchronously write all file data to storage accompanying hot write references. In this study, we concentrate on the effect of hot write references on Flash storage, and we consider the effect of absorbing the hot write references via nonvolatile write cache on the performance of the FTL schemes in Flash storage. In so doing, we quantify the performance of typical FTL schemes for a realistic digital camera workload that contains hot write references through experiments on a real system environment. Results show that for the workload with hot write references FTL performance does not conform with previously reported studies. We also conclude that the impact of the underlying FTL schemes on the performance of Flash storage is dramatically reduced by absorbing the hot write references via nonvolatile write cache.
ER -
English
