Indian Journal of Science and Technology

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Objectives: The critical problem of mass storage and access is handled by Distributed Storage System (DSS) by incorporating data Replication and/or Dispersal techniques. Handling the hybrid failures is very crucial for the design of reliable and efficient DSS. The realistic combination of Crash and Non-Crash faults in DSS disallow fail stop assumption in design. This paper provides an insight into different types of failures, adversaries, proposes a systematic scheme to simulate adversarial effect in DSS. Methods/Statistical Analysis: Information Dispersal Algorithm (IDA) and Reed Solomon codes (RS) are the methods used to analyze the performance of the system. Findings: The performance of the system and robustness of the RS Coded DSS is evaluated and analyzed for various Workload, RS (n,k) values, % of Hybrid failures to design reliable and efficient Distributed Storage System. Application/Improvement: Reed Solomon codes improves the performance of the system by handling both errors and erasures compared to Information Dispersal Algorithm.

Keywords

Adversary, Dispersal, Distributed Storage System (DSS), Hybrid failures, Replication, RS Codes.
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