Storage Investigate

Modeling the Impact of Disk Scrubbing on Storage System

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Executive Summary

One of characteristics of the rising cloud storage technology is low-cost and high reliability. A distinct benefit of disk scanning or scrubbing operation is identifying the potential failure sectors as early as possible, thus providing high reliability. Obviously, the higher the scrubbing frequency is, the higher the system reliability is. However, it may take a few hours for a scanning process to check the whole disk. In other words, the scrubbing process may result in a downtime or a lower system performance.

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