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App. Res. of Comp. Accepted Paper
Vol. 42, 2025 No. 9

Local repair array codes with low repair cost in storage systems

Tang Jinhua1,2
Huang Juan1,2
Yang Yang3
Tang Dan1,2
Cai Hongliang1,2
Yu Hongzhou1,2
Xiong Pan1,2
1. School of Software Engineering, Chengdu University of Information Technology, Chengdu Sichuan 610225, China
2. Sichuan Province Engineering Technology Research Center of Support Software of Informatization Application, Chengdu Sichuan 610225, China
3. Sichuan Computer Research Institute, Chengdu Sichuan 610041, China
DOI: 10.19734/j.issn.1001-3695.2025.01.0028

Abstract

Under the widespread application of large-scale distributed storage systems, traditional fault-tolerant coding schemes face technical challenges such as high read resource consumption and insufficient repair efficiency during single-disk and double-disk failure recovery. This paper proposes VC-code (Vertical Central Symmetric Code) , a hybrid parity-check coding scheme with local repair characteristics. By integrating the rapid recovery and load balancing features of horizontal-vertical array codes, VC-code designs a structure that cross-couples local horizontal parity with diagonal parity checks, while optimizing data dependency through vertical central symmetric parity layout. This design significantly reduces data read volume for single and double disk failure recovery while improving overall efficiency by shortening repair chains. Theoretical analysis demonstrates substantial reductions in data read overhead during single and dual disk failure recovery. Experimental results further validate its performance advantages: compared with RDP, LRRDP, and DRDP codes, VC-code reduces single-disk failure recovery time by 10.45% to 29.57% and double-disk failure recovery time by 6.35% to 33.24%.

Foundation Support

四川省自然科学基金重点项目(2024NSFSC0042)

Publish Information

DOI: 10.19734/j.issn.1001-3695.2025.01.0028
Publish at: Application Research of Computers Accepted Paper, Vol. 42, 2025 No. 9

Publish History

[2025-05-12] Accepted Paper

Cite This Article

唐金华, 黄鹃, 杨洋, 等. 存储系统中低修复成本的局部修复阵列码 [J]. 计算机应用研究, 2025, 42 (9). (2025-05-27). https://doi.org/10.19734/j.issn.1001-3695.2025.01.0028. (Tang Jinhua, Huang Juan, Yang Yang, et al. Local repair array codes with low repair cost in storage systems [J]. Application Research of Computers, 2025, 42 (9). (2025-05-27). https://doi.org/10.19734/j.issn.1001-3695.2025.01.0028. )

About the Journal

  • Application Research of Computers Monthly Journal
  • Journal ID ISSN 1001-3695
    CN  51-1196/TP

Application Research of Computers, founded in 1984, is an academic journal of computing technology sponsored by Sichuan Institute of Computer Sciences under the Science and Technology Department of Sichuan Province.

Aiming at the urgently needed cutting-edge technology in this discipline, Application Research of Computers reflects the mainstream technology, hot technology and the latest development trend of computer application research at home and abroad in a timely manner. The main contents of the journal include high-level academic papers in this discipline, the latest scientific research results and major application results. The contents of the columns involve new theories of computer discipline, basic computer theory, algorithm theory research, algorithm design and analysis, blockchain technology, system software and software engineering technology, pattern recognition and artificial intelligence, architecture, advanced computing, parallel processing, database technology, computer network and communication technology, information security technology, computer image graphics and its latest hot application technology.

Application Research of Computers has many high-level readers and authors, and its readers are mainly senior and middle-level researchers and engineers engaged in the field of computer science, as well as teachers and students majoring in computer science and related majors in colleges and universities. Over the years, the total citation frequency and Web download rate of Application Research of Computers have been ranked among the top of similar academic journals in this discipline, and the academic papers published are highly popular among the readers for their novelty, academics, foresight, orientation and practicality.

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