Data recovery from sudden power-off in mobile devices

Dongwook Kim; Sungmin Park; Seona Won; Sooyong Kang

doi:10.1109/GCCE.2012.6379921

Data recovery from sudden power-off in mobile devices

Dongwook Kim^*, Sungmin Park, Seona Won, Sooyong Kang

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

1 Citation (Scopus)

Abstract

Mobile devices always have risk of unexpected battery component separation. In this paper, we present Difference Ratio-based Logging, a data recovery technology to prevent data loss in the volatile memory (DRAM) write buffer from sudden power-off. The proposed scheme can recover up-to-date user data in the buffer by using either two flash memory pages-sized NVRAM or small capacitor that sustains for flushing two pages of data in DRAM to flash memory. Our simulation study shows that the proposed scheme can provide recoverability of buffered data from sudden power-off with reasonable performance degradation compared with non-volatile memory-based write buffer.

Original language	English
Title of host publication	GCCE 2012
Subtitle of host publication	1st IEEE Global Conference on Consumer Electronics 2012
Place of Publication	Piscataway, New Jersey
Pages	584-585
Number of pages	2
ISBN (Electronic)	9781467315012, 9781467314992, 9781467314985
DOIs	https://doi.org/10.1109/GCCE.2012.6379921
Publication status	Published - 2012
Externally published	Yes
Event	1st IEEE Global Conference on Consumer Electronics, GCCE 2012 - Tokyo, Japan Duration: 2 Oct 2012 → 5 Oct 2012

Other

Other	1st IEEE Global Conference on Consumer Electronics, GCCE 2012
Country/Territory	Japan
City	Tokyo
Period	2/10/12 → 5/10/12

Keywords

mobile device
flash memory
sudden power-off
data recovery

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10.1109/GCCE.2012.6379921

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title = "Data recovery from sudden power-off in mobile devices",

abstract = "Mobile devices always have risk of unexpected battery component separation. In this paper, we present Difference Ratio-based Logging, a data recovery technology to prevent data loss in the volatile memory (DRAM) write buffer from sudden power-off. The proposed scheme can recover up-to-date user data in the buffer by using either two flash memory pages-sized NVRAM or small capacitor that sustains for flushing two pages of data in DRAM to flash memory. Our simulation study shows that the proposed scheme can provide recoverability of buffered data from sudden power-off with reasonable performance degradation compared with non-volatile memory-based write buffer.",

keywords = "mobile device, flash memory, sudden power-off, data recovery",

author = "Dongwook Kim and Sungmin Park and Seona Won and Sooyong Kang",

year = "2012",

doi = "10.1109/GCCE.2012.6379921",

language = "English",

isbn = "9781467315005",

pages = "584--585",

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note = "1st IEEE Global Conference on Consumer Electronics, GCCE 2012 ; Conference date: 02-10-2012 Through 05-10-2012",

}

TY - GEN

T1 - Data recovery from sudden power-off in mobile devices

AU - Kim, Dongwook

AU - Park, Sungmin

AU - Won, Seona

AU - Kang, Sooyong

PY - 2012

Y1 - 2012

N2 - Mobile devices always have risk of unexpected battery component separation. In this paper, we present Difference Ratio-based Logging, a data recovery technology to prevent data loss in the volatile memory (DRAM) write buffer from sudden power-off. The proposed scheme can recover up-to-date user data in the buffer by using either two flash memory pages-sized NVRAM or small capacitor that sustains for flushing two pages of data in DRAM to flash memory. Our simulation study shows that the proposed scheme can provide recoverability of buffered data from sudden power-off with reasonable performance degradation compared with non-volatile memory-based write buffer.

AB - Mobile devices always have risk of unexpected battery component separation. In this paper, we present Difference Ratio-based Logging, a data recovery technology to prevent data loss in the volatile memory (DRAM) write buffer from sudden power-off. The proposed scheme can recover up-to-date user data in the buffer by using either two flash memory pages-sized NVRAM or small capacitor that sustains for flushing two pages of data in DRAM to flash memory. Our simulation study shows that the proposed scheme can provide recoverability of buffered data from sudden power-off with reasonable performance degradation compared with non-volatile memory-based write buffer.

KW - mobile device

KW - flash memory

KW - sudden power-off

KW - data recovery

UR - http://www.scopus.com/inward/record.url?scp=84872355755&partnerID=8YFLogxK

U2 - 10.1109/GCCE.2012.6379921

DO - 10.1109/GCCE.2012.6379921

M3 - Conference proceeding contribution

AN - SCOPUS:84872355755

SN - 9781467315005

SP - 584

EP - 585

BT - GCCE 2012

CY - Piscataway, New Jersey

T2 - 1st IEEE Global Conference on Consumer Electronics, GCCE 2012

Y2 - 2 October 2012 through 5 October 2012

ER -

Data recovery from sudden power-off in mobile devices

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