Rebuttal to "Beyond MTTDL: A Closed-Form RAID 6 Reliability Equation"

Copyright © (2015) by Association for Computing Machinery, Inc. Permission to make digital or hard copies of part or all of this work for personal or classroom use is granted without fee provided that copies are not made or distrubuted for profit or commericial advantage. To copy otherwise, to republish, to post on servers, or to redistribute to lists, requires prior specific permission and/or a fee.

A recent article on the reliability of RAID-6 storage systems blatantly ignores certain relevant prior work published in the past twenty years and concludes that the widely used mean time to data loss (MTTDL) metric does not provide accurate results. In this note, we refute this position by invoking uncited relevant prior work and demonstrating that the MTTDL remains a useful metric.

By: Ilias Iliadis, Vinodh Venkatesan

Published in: ACM Transactions on Storage, volume 11, (no 2), pages 9:1-9:10 in 2015

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