TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems

Lei Yao; Duo Liu; Kan Zhong; Linbo Long; Zili Shao

doi:10.1109/HPCC-CSS-ICESS.2015.263

TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems

Lei Yao, Duo Liu, Kan Zhong, Linbo Long, Zili Shao

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

6 Citations (Scopus)

Abstract

Similar to traditional NAND flash memory, triple-level cell (TLC) flash memory is used as secondary storage to meet the fast growing demands on storage capacity. TLC flash memory exhibits attractive features such as shock resistance, high density, low cost, non-volatility and low access latency natures. However, TLC flash memory also has some extra limitations, such as write disturbance, low performances and very limited cycles compared to single-level cell (SLC) flash memory. In this paper, we propose a workload-aware flash translation layer, named TLC-FTL, for the TLC/SLC dual-mode enabled flash memory, to improve performance and lifespan of the system. The basic idea is to classify metadata/userdata according to their access pattern, and store the hot/code data in SLC/TLC-mode flash, respectively. TLC-FTL dynamically allocates TLC/SLC capacity based on different workloads. Experimental results show that TLC-FTL can effectively improve the performance and lifetime of the TLC/SLC dual-mode flash memory in embedded systems.

Original language	English
Title of host publication	Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015
Publisher	IEEE
Pages	831-834
Number of pages	4
ISBN (Electronic)	9781479989362
DOIs	https://doi.org/10.1109/HPCC-CSS-ICESS.2015.263
Publication status	Published - 23 Nov 2015
Event	17th IEEE International Conference on High Performance Computing and Communications, IEEE 7th International Symposium on Cyberspace Safety and Security and IEEE 12th International Conference on Embedded Software and Systems, HPCC-ICESS-CSS 2015 - New York, United States Duration: 24 Aug 2015 → 26 Aug 2015

Conference

Conference	17th IEEE International Conference on High Performance Computing and Communications, IEEE 7th International Symposium on Cyberspace Safety and Security and IEEE 12th International Conference on Embedded Software and Systems, HPCC-ICESS-CSS 2015
Country/Territory	United States
City	New York
Period	24/08/15 → 26/08/15

Keywords

SLC mode
TLC flash memory
TLC mode
Workload aware

ASJC Scopus subject areas

Software
Control and Systems Engineering
Computer Networks and Communications

More information

10.1109/HPCC-CSS-ICESS.2015.263

Cite this

Yao, L., Liu, D., Zhong, K., Long, L., & Shao, Z. (2015). TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems. In Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015 (pp. 831-834). Article 7336264 IEEE. https://doi.org/10.1109/HPCC-CSS-ICESS.2015.263

Yao, Lei ; Liu, Duo ; Zhong, Kan et al. / TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems. Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015. IEEE, 2015. pp. 831-834

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abstract = "Similar to traditional NAND flash memory, triple-level cell (TLC) flash memory is used as secondary storage to meet the fast growing demands on storage capacity. TLC flash memory exhibits attractive features such as shock resistance, high density, low cost, non-volatility and low access latency natures. However, TLC flash memory also has some extra limitations, such as write disturbance, low performances and very limited cycles compared to single-level cell (SLC) flash memory. In this paper, we propose a workload-aware flash translation layer, named TLC-FTL, for the TLC/SLC dual-mode enabled flash memory, to improve performance and lifespan of the system. The basic idea is to classify metadata/userdata according to their access pattern, and store the hot/code data in SLC/TLC-mode flash, respectively. TLC-FTL dynamically allocates TLC/SLC capacity based on different workloads. Experimental results show that TLC-FTL can effectively improve the performance and lifetime of the TLC/SLC dual-mode flash memory in embedded systems.",

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Yao, L, Liu, D, Zhong, K, Long, L & Shao, Z 2015, TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems. in Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015., 7336264, IEEE, pp. 831-834, 17th IEEE International Conference on High Performance Computing and Communications, IEEE 7th International Symposium on Cyberspace Safety and Security and IEEE 12th International Conference on Embedded Software and Systems, HPCC-ICESS-CSS 2015, New York, United States, 24/08/15. https://doi.org/10.1109/HPCC-CSS-ICESS.2015.263

TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems. / Yao, Lei; Liu, Duo; Zhong, Kan et al.
Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015. IEEE, 2015. p. 831-834 7336264.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

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AU - Yao, Lei

AU - Liu, Duo

AU - Zhong, Kan

AU - Long, Linbo

AU - Shao, Zili

PY - 2015/11/23

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N2 - Similar to traditional NAND flash memory, triple-level cell (TLC) flash memory is used as secondary storage to meet the fast growing demands on storage capacity. TLC flash memory exhibits attractive features such as shock resistance, high density, low cost, non-volatility and low access latency natures. However, TLC flash memory also has some extra limitations, such as write disturbance, low performances and very limited cycles compared to single-level cell (SLC) flash memory. In this paper, we propose a workload-aware flash translation layer, named TLC-FTL, for the TLC/SLC dual-mode enabled flash memory, to improve performance and lifespan of the system. The basic idea is to classify metadata/userdata according to their access pattern, and store the hot/code data in SLC/TLC-mode flash, respectively. TLC-FTL dynamically allocates TLC/SLC capacity based on different workloads. Experimental results show that TLC-FTL can effectively improve the performance and lifetime of the TLC/SLC dual-mode flash memory in embedded systems.

AB - Similar to traditional NAND flash memory, triple-level cell (TLC) flash memory is used as secondary storage to meet the fast growing demands on storage capacity. TLC flash memory exhibits attractive features such as shock resistance, high density, low cost, non-volatility and low access latency natures. However, TLC flash memory also has some extra limitations, such as write disturbance, low performances and very limited cycles compared to single-level cell (SLC) flash memory. In this paper, we propose a workload-aware flash translation layer, named TLC-FTL, for the TLC/SLC dual-mode enabled flash memory, to improve performance and lifespan of the system. The basic idea is to classify metadata/userdata according to their access pattern, and store the hot/code data in SLC/TLC-mode flash, respectively. TLC-FTL dynamically allocates TLC/SLC capacity based on different workloads. Experimental results show that TLC-FTL can effectively improve the performance and lifetime of the TLC/SLC dual-mode flash memory in embedded systems.

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Yao L, Liu D, Zhong K, Long L, Shao Z. TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems. In Proceedings - 2015 IEEE 17th International Conference on High Performance Computing and Communications, 2015 IEEE 7th International Symposium on Cyberspace Safety and Security and 2015 IEEE 12th International Conference on Embedded Software and Systems, HPCC-CSS-ICESS 2015. IEEE. 2015. p. 831-834. 7336264 doi: 10.1109/HPCC-CSS-ICESS.2015.263

TLC-FTL: Workload-aware flash translation layer for TLC/SLC dual-mode flash memory in embedded systems

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