A switch page fault triggered a cascade of hardware and software failures that disrupted cluster operations. NVIDIA Minerva's correlation engine consolidated 81 distinct anomalies into a single incident report, identifying the root cause and enabling targeted remediation.
The Incident
A system-wide disruption was triggered by a specific sequence of failures:
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A page fault error occurred on a network switch.
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The error caused an unexpected switch restart.
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The restart led to widespread network congestion and bottlenecks.
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The following anomalies were observed:
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Significant spikes in GPU temperatures.
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A surge in RX pause-frame anomalies propagating across the fabric.
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Resolution and Noise Reduction
Using the NVIDIA Minerva correlation engine, the troubleshooting process was streamlined:
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Event correlation: NVIDIA Minerva automatically identified and correlated 81 distinct events and anomalies.
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Incident consolidation: The 81 data points were collapsed into a single incident report, significantly reducing noise for the operations team.
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Root cause identification: The correlated data pointed directly to a High Frequency Telemetry issue on several switches.
Remediation and Impact
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Action taken: Operations opened a high-priority ticket with the Cumulus team based on the recommended remediation.
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Operational savings: By automating the correlation and root cause analysis, the platform saved an estimated 54 hours of total cluster uptime.
NVIDIA Minerva's correlation engine is critical for converting fragmented telemetry data into actionable insights, preventing hours of downtime and reducing the manual burden on SRE and Network Operations teams.
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