SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors

Min Huang; Yi Wang; Liyan Qiao; Duo Liu; Zili Shao

doi:10.1109/HPCC-CSS-ICESS.2015.180

SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors

Min Huang, Yi Wang, Liyan Qiao, Duo Liu, Zili Shao

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

7 Citations (Scopus)

Abstract

Unpredictable power outages in NAND flashbased Solid State Drives (SSDs) may cause system failure or reliability problems. Capacitors are widely adopted as the interim power supplier when power interruption happens. However, since the energy provided by backup capacitors is limited, and the capacitance of a capacitor will gradually degrade with time, it is imperative to improve the efficiency and reliability of the backup process for SSDs with capacitors. This paper presents a novel backup scheme called SmartBackupfor MLC NAND flash-based SSDs with backup capacitors. In SmartBackup, by exploiting the feature of the discharge process of capacitors, all available SSD channels are fully utilized and dynamically adjusted based on the available voltage, so data can be efficiently stored in a reliable manner. Moreover, in SmartBackup, to write data in a time/energyefficient manner with better reliability, we adopt a fast and reliable programming strategy by only writing LSB (Least Significant Bit) pages in MLC NAND flash. To the best of our acknowledge, this is the first work to jointly utilize the property of the multi-page architecture of MLC NAND flash and the discharge characteristic of capacitors to improvethe efficiency and reliability of the backup process in SSDswith backup capacitors. The experimental results show thatSmartBackup can effectively accelerate the backup processand improve the reliability.

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	746-751
Number of pages	6
ISBN (Electronic)	9781479989362
DOIs	https://doi.org/10.1109/HPCC-CSS-ICESS.2015.180
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

Capacitors
Reliability
SSD

ASJC Scopus subject areas

Software
Control and Systems Engineering
Computer Networks and Communications

More information

10.1109/HPCC-CSS-ICESS.2015.180

Cite this

Huang, M., Wang, Y., Qiao, L., Liu, D., & Shao, Z. (2015). SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors. 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. 746-751). Article 7336247 IEEE. https://doi.org/10.1109/HPCC-CSS-ICESS.2015.180

Huang, Min ; Wang, Yi ; Qiao, Liyan et al. / SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors. 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. 746-751

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abstract = "Unpredictable power outages in NAND flashbased Solid State Drives (SSDs) may cause system failure or reliability problems. Capacitors are widely adopted as the interim power supplier when power interruption happens. However, since the energy provided by backup capacitors is limited, and the capacitance of a capacitor will gradually degrade with time, it is imperative to improve the efficiency and reliability of the backup process for SSDs with capacitors. This paper presents a novel backup scheme called SmartBackupfor MLC NAND flash-based SSDs with backup capacitors. In SmartBackup, by exploiting the feature of the discharge process of capacitors, all available SSD channels are fully utilized and dynamically adjusted based on the available voltage, so data can be efficiently stored in a reliable manner. Moreover, in SmartBackup, to write data in a time/energyefficient manner with better reliability, we adopt a fast and reliable programming strategy by only writing LSB (Least Significant Bit) pages in MLC NAND flash. To the best of our acknowledge, this is the first work to jointly utilize the property of the multi-page architecture of MLC NAND flash and the discharge characteristic of capacitors to improvethe efficiency and reliability of the backup process in SSDswith backup capacitors. The experimental results show thatSmartBackup can effectively accelerate the backup processand improve the reliability.",

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author = "Min Huang and Yi Wang and Liyan Qiao and Duo Liu and Zili Shao",

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note = "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 ; Conference date: 24-08-2015 Through 26-08-2015",

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Huang, M, Wang, Y, Qiao, L, Liu, D & Shao, Z 2015, SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors. 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., 7336247, IEEE, pp. 746-751, 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.2015.180

SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors. / Huang, Min; Wang, Yi; Qiao, Liyan 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. 746-751 7336247.

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

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AU - Huang, Min

AU - Wang, Yi

AU - Qiao, Liyan

AU - Liu, Duo

AU - Shao, Zili

PY - 2015/11/23

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N2 - Unpredictable power outages in NAND flashbased Solid State Drives (SSDs) may cause system failure or reliability problems. Capacitors are widely adopted as the interim power supplier when power interruption happens. However, since the energy provided by backup capacitors is limited, and the capacitance of a capacitor will gradually degrade with time, it is imperative to improve the efficiency and reliability of the backup process for SSDs with capacitors. This paper presents a novel backup scheme called SmartBackupfor MLC NAND flash-based SSDs with backup capacitors. In SmartBackup, by exploiting the feature of the discharge process of capacitors, all available SSD channels are fully utilized and dynamically adjusted based on the available voltage, so data can be efficiently stored in a reliable manner. Moreover, in SmartBackup, to write data in a time/energyefficient manner with better reliability, we adopt a fast and reliable programming strategy by only writing LSB (Least Significant Bit) pages in MLC NAND flash. To the best of our acknowledge, this is the first work to jointly utilize the property of the multi-page architecture of MLC NAND flash and the discharge characteristic of capacitors to improvethe efficiency and reliability of the backup process in SSDswith backup capacitors. The experimental results show thatSmartBackup can effectively accelerate the backup processand improve the reliability.

AB - Unpredictable power outages in NAND flashbased Solid State Drives (SSDs) may cause system failure or reliability problems. Capacitors are widely adopted as the interim power supplier when power interruption happens. However, since the energy provided by backup capacitors is limited, and the capacitance of a capacitor will gradually degrade with time, it is imperative to improve the efficiency and reliability of the backup process for SSDs with capacitors. This paper presents a novel backup scheme called SmartBackupfor MLC NAND flash-based SSDs with backup capacitors. In SmartBackup, by exploiting the feature of the discharge process of capacitors, all available SSD channels are fully utilized and dynamically adjusted based on the available voltage, so data can be efficiently stored in a reliable manner. Moreover, in SmartBackup, to write data in a time/energyefficient manner with better reliability, we adopt a fast and reliable programming strategy by only writing LSB (Least Significant Bit) pages in MLC NAND flash. To the best of our acknowledge, this is the first work to jointly utilize the property of the multi-page architecture of MLC NAND flash and the discharge characteristic of capacitors to improvethe efficiency and reliability of the backup process in SSDswith backup capacitors. The experimental results show thatSmartBackup can effectively accelerate the backup processand improve the reliability.

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Huang M, Wang Y, Qiao L, Liu D, Shao Z. SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors. 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. 746-751. 7336247 doi: 10.1109/HPCC-CSS-ICESS.2015.180

SmartBackup: An efficient and reliable backup strategy for solid state drives with backup capacitors

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