التفاصيل البيبلوغرافية
| العنوان: |
From Missteps to Milestones: A Journey to Practical Fail-Slow Detection. |
| المؤلفون: |
RUIMING LU, ERCI XU, YIMING ZHANG, FENGYI ZHU, ZHAOSHENG ZHU, MENGTIAN WANG, ZONGPENG ZHU, GUANGTAO XUE, JIWU SHU, MINGLU LI, JIESHENG WU |
| المصدر: |
ACM Transactions on Storage; Nov2023, Vol. 19 Issue 4, p1-28, 28p |
| مصطلحات موضوعية: |
ROOT cause analysis |
| مستخلص: |
The newly emerging "fail-slow" failures plague both software and hardware where the victim components are still functioning yet with degraded performance. To address this problem, this article presents Perseus, a practical fail-slow detection framework for storage devices. Perseus leverages a light regression-based model to quickly pinpoint and analyze fail-slow failures at the granularity of drives.Within a 10-month close monitoring on 248K drives, Perseus managed to find 304 fail-slow cases. Isolating them can reduce the (nodelevel) 99.99th tail latency by 48%. We assemble a large-scale fail-slow dataset (including 41K normal drives and 315 verified fail-slow drives) from our production traces, based on which we provide root cause analysis on fail-slow drives covering a variety of ill-implemented scheduling, hardware defects, and environmental factors. We have released the dataset to the public for fail-slow study. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
