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Lifetime Estimation of Hard Drives Using Performance and Reliability Characterization

Dezhban, Ava | 2023

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 56702 (19)
  4. University: Sharif University of Technology
  5. Department: Computer Engineering
  6. Advisor(s): Asadi, Hossein
  7. Abstract:
  8. The lifespan of hard disks greatly affects their performance and reliability. Ensuring the freshness of disks during the procurement process for hardware manufacturing companies is crucial for maintaining efficient production systems. Predicting the approximate lifespan of hard disks involves analyzing their characteristics and operational history. Relying solely on SMART reports for estimating disk lifespan is not reliable due to the potential firmware tampering. Previous studies have primarily focused on SATA disks, investigating the relationship between failures and SMART parameter values, while neglecting SAS disks. However, in this research, we collected SMART reports from approximately 1000 SAS disks in real environments to develop a machine learning model that accurately estimates and predicts disk lifespan based on relevant parameters. Additionally, to evaluate our proposed method, we conducted different test scenarios using commercial SAS disks with varying lifetimes. The results demonstrated that the decision tree algorithm achieved the highest accuracy of 92 percent for hard disk lifetime estimation. Furthermore, performing random writing on hard disks over time leads to significant changes in performance-related parameters, with notable differences in average write latency between hard disks under 2 years old and those over 2 years old
  9. Keywords:
  10. Hard Disk Drives ; Characterization ; Performance ; Reliability ; Performance Characteristics ; Life Time Estmation

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