Being Accurate Is Not Enough: New Metrics for Disk Failure Prediction

  title={Being Accurate Is Not Enough: New Metrics for Disk Failure Prediction},
  author={J. Li and R. Stones and G. Wang and Zhongwei Li and X. Liu and K. Xiao},
  journal={2016 IEEE 35th Symposium on Reliable Distributed Systems (SRDS)},
  • J. Li, R. Stones, +3 authors K. Xiao
  • Published 2016
  • Computer Science
  • 2016 IEEE 35th Symposium on Reliable Distributed Systems (SRDS)
  • Traditionally, disk failure prediction accuracy is used to evaluate disk failure prediction model. However, accuracy may not reflect their practical usage (protecting against failures, rather than only predicting failures) in cloud storage systems. In this paper, we propose two new metrics for disk failure prediction models: migration rate, which measures how much at-risk data is protected as a result of correct failure predictions, and mismigration rate, which measures how much data is… CONTINUE READING
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