Proceedings of the XXth Conference of Open Innovations Association FRUCT (Apr 2019)

Latency/Wearout in a Flash-based Storage System with Replication on Write

  • Alexander Rumyantsev,
  • Evgeny Ivashko,
  • Ilya Chernov,
  • Dmitry Kositsyn,
  • Anton Shabaev,
  • Vadim Ponomarev

Journal volume & issue
Vol. 854, no. 24
pp. 360 – 366

Abstract

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We investigate the influence of latency and wearout of writing data on the efficiency of high-performance data storage systems. Using a mathematical model, we propose the strategy of redundant writing with cancelling long write operations. Pre- sented numerical simulation results allow choosing the replication level needed to achieve the trade-off between the latency and wearout that provides desired reliability and efficiency.

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