Engineering and Technology | Open Access | DOI: https://doi.org/10.37547/tajet/Volume07Issue08-20

Methods for Data Recovery from Damaged and Inaccessible RAID Arrays

Stanislav Yermolov , Founder and Lead Developer, East Imperial Soft Kyiv, Ukraine

Abstract

This work provides a systematization and critical analysis of existing methodologies for recovering information from damaged or inaccessible Redundant Array of Independent Disks (RAID) arrays. The relevance of the study is determined by the fact that the reliability of corporate storage directly affects the continuity of business processes and the stability of government operations. The objective of the research is to conduct a comprehensive review of algorithmic approaches to data recovery with a focus on automated identification of key array configuration parameters and reconstruction of information at the logical level. In particular, traditional methods based on analysis of metadata and block placement tables are examined, as well as modern techniques employing entropy-based assessment of bit distributions, detection of file system signatures, and application of heuristic machine learning models. It is noted that the combination of automatic recognition of RAID parameters (level, striping algorithm, block size) with in-depth analysis of internal file system structure minimizes operator intervention and significantly increases the likelihood of successful data retrieval even in the absence of complete configuration information. This work will be useful for IT data recovery engineers, information security and digital forensics specialists, and researchers addressing reliability and fault tolerance of modern storage systems.

Keywords

RAID, data recovery, RAID 5, RAID 6, damaged array, data redundancy, file system

References

175 Zettabytes By 2025. Retrieved from https://www.forbes.com/sites/tomcoughlin/2018/11/27/175-zettabytes-by-2025/ (date of access 05/15/2025)

Backblaze. (2024). Backblaze Drive Stats for Q1 2024. Backblaze Blog. Retrieved from https://www.backblaze.com/blog/backblaze-drive-stats-for-q1-2024/ (date of access: 06/20/2025)

Ali, B. H., et al. (2021). Identification of distributed denial of service anomalies by using combination of entropy and sequential probability ratio test methods. Sensors, 21(19), 1–17. https://doi.org/10.3390/s21196453

Viji, D., & Revathy, S. (2023). Hash-indexing block-based deduplication algorithm for reducing storage in the cloud. Computer Systems Science and Engineering, 46(1), 27-42.

Özdemir, A., & Gülcü, Ş. (2021). Causes of digital data loss and data recovery methods. 2nd International, 5, 1-18.

Faiella, A., et al. (2022). Enabling knowledge through structured disaster damage & loss data management system. Sustainability, 14(10), 1-22. https://doi.org/10.3390/su14106187

Yang, Y. (2024). Optimizing RAID 6 performance and reliability using Reed–Solomon codes: Implementation, analysis, and exploration of alternative methods. Applied and Computational Engineering, 31, 261-267. https://doi.org/10.54254/2755-2721/31/20230165

Karagiannis, C., & Vergidis, K. (2021). Digital evidence and cloud forensics: Contemporary legal challenges and the power of disposal. Information, 12(5), 1-16. https://doi.org/10.3390/info12050181

Ali, R. R., & Mohamad, K. M. (2021). RX_myKarve carving framework for reassembling complex fragmentations of JPEG images. Journal of King Saud University – Computer and Information Sciences, 33(1), 21-32. https://doi.org/10.1016/j.jksuci.2018.12.007

Aronsson, F., & Lund, O. (2025). Secure data deletion: Ensuring confidentiality in digital systems: A survey of methods for data erasure, 29-42.

Magic RAID Recovery Software. Retrieved from: https://www.magicuneraser.com/raid_recovery/ (date of access 05/15/2025)

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Stanislav Yermolov. (2025). Methods for Data Recovery from Damaged and Inaccessible RAID Arrays. The American Journal of Engineering and Technology, 7(8), 250–258. https://doi.org/10.37547/tajet/Volume07Issue08-20