How To Calculate And Trigger Alarm For "Disk Utilization (%)" Metric From Prometheus Node Exporter
(Doc ID 3032202.1)
Last updated on JULY 31, 2024
Applies to:
OCI Management Agent Service - Version N/A and laterInformation in this document applies to any platform.
Goal
How to calculate the "Disk Utilization (%)" metric for an Instance?
To calculate the "Disk Utilization (%)" metric, the formula is:
Disk Utilization (%) = [node_filesystem_avail_bytes / node_filesystem_size_bytes] * 100
where:
• node_filesystem_size_bytes (capacity of FileSystem (bytes))
• node_filesystem_avail_bytes (capacity of FileSystem (bytes) available to non-root users)
We get the value for metric "node_filesystem_size_bytes" and "node_filesystem_avail_bytes" directly from Prometheus Node Exporter and need to use these metrics to calculate and generate Alarm for "Disk Utilization (%)".
Solution
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In this Document
Goal |
Solution |