An endurance-aware metadata allocation strategy for MLC NAND flash memory storage systems

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

doi:10.1109/TCAD.2015.2474394

An endurance-aware metadata allocation strategy for MLC NAND flash memory storage systems

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

Research output: Journal article publication › Journal article › Academic research › peer-review

23 Citations (Scopus)

Abstract

This paper presents a reliability-aware metadata allocation strategy called scatter-single-level cell (SLC) for multiple-level cell (MLC) NAND flash memory storage systems. In scatter-SLC, metadata is kept in least significant bit (LSB) pages and corresponding most significant bit (MSB) pages are bypassed. Without partitioning SLC and MLC blocks, scatter-SLC can eliminate the unbalanced lifetime between SLC and MLC blocks while achieving the similar error rate as the method to store metadata in SLC blocks. We implemented scatter-SLC on a real-hardware platform. The experiment results show that scatter-SLC can reduce uncorrectable page errors by 93.54% while incurring less than 1% time overhead on average compared with the previous work.

Original language	English
Article number	7229298
Pages (from-to)	691-694
Number of pages	4
Journal	IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Volume	35
Issue number	4
DOIs	https://doi.org/10.1109/TCAD.2015.2474394
Publication status	Published - 1 Apr 2016

Keywords

Metadata
MLC
NAND flash memory
Reliability
Shared page

ASJC Scopus subject areas

Software
Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering

More information

10.1109/TCAD.2015.2474394

Cite this

@article{cb81f1300f8342b481c1d63943a64523,

title = "An endurance-aware metadata allocation strategy for MLC NAND flash memory storage systems",

abstract = "This paper presents a reliability-aware metadata allocation strategy called scatter-single-level cell (SLC) for multiple-level cell (MLC) NAND flash memory storage systems. In scatter-SLC, metadata is kept in least significant bit (LSB) pages and corresponding most significant bit (MSB) pages are bypassed. Without partitioning SLC and MLC blocks, scatter-SLC can eliminate the unbalanced lifetime between SLC and MLC blocks while achieving the similar error rate as the method to store metadata in SLC blocks. We implemented scatter-SLC on a real-hardware platform. The experiment results show that scatter-SLC can reduce uncorrectable page errors by 93.54% while incurring less than 1% time overhead on average compared with the previous work.",

keywords = "Metadata, MLC, NAND flash memory, Reliability, Shared page",

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

year = "2016",

month = apr,

day = "1",

doi = "10.1109/TCAD.2015.2474394",

language = "English",

volume = "35",

pages = "691--694",

journal = "IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems",

issn = "0278-0070",

publisher = "IEEE",

number = "4",

}

An endurance-aware metadata allocation strategy for MLC NAND flash memory storage systems. / Huang, Min; Liu, Zhaoqing; Qiao, Liyan et al.
In: IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, Vol. 35, No. 4, 7229298, 01.04.2016, p. 691-694.

Research output: Journal article publication › Journal article › Academic research › peer-review

TY - JOUR

T1 - An endurance-aware metadata allocation strategy for MLC NAND flash memory storage systems

AU - Huang, Min

AU - Liu, Zhaoqing

AU - Qiao, Liyan

AU - Wang, Yi

AU - Shao, Zili

PY - 2016/4/1

Y1 - 2016/4/1

N2 - This paper presents a reliability-aware metadata allocation strategy called scatter-single-level cell (SLC) for multiple-level cell (MLC) NAND flash memory storage systems. In scatter-SLC, metadata is kept in least significant bit (LSB) pages and corresponding most significant bit (MSB) pages are bypassed. Without partitioning SLC and MLC blocks, scatter-SLC can eliminate the unbalanced lifetime between SLC and MLC blocks while achieving the similar error rate as the method to store metadata in SLC blocks. We implemented scatter-SLC on a real-hardware platform. The experiment results show that scatter-SLC can reduce uncorrectable page errors by 93.54% while incurring less than 1% time overhead on average compared with the previous work.

AB - This paper presents a reliability-aware metadata allocation strategy called scatter-single-level cell (SLC) for multiple-level cell (MLC) NAND flash memory storage systems. In scatter-SLC, metadata is kept in least significant bit (LSB) pages and corresponding most significant bit (MSB) pages are bypassed. Without partitioning SLC and MLC blocks, scatter-SLC can eliminate the unbalanced lifetime between SLC and MLC blocks while achieving the similar error rate as the method to store metadata in SLC blocks. We implemented scatter-SLC on a real-hardware platform. The experiment results show that scatter-SLC can reduce uncorrectable page errors by 93.54% while incurring less than 1% time overhead on average compared with the previous work.

KW - Metadata

KW - MLC

KW - NAND flash memory

KW - Reliability

KW - Shared page

UR - http://www.scopus.com/inward/record.url?scp=84963774057&partnerID=8YFLogxK

U2 - 10.1109/TCAD.2015.2474394

DO - 10.1109/TCAD.2015.2474394

M3 - Journal article

SN - 0278-0070

VL - 35

SP - 691

EP - 694

JO - IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems

JF - IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems

IS - 4

M1 - 7229298

ER -

An endurance-aware metadata allocation strategy for MLC NAND flash memory storage systems

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this