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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 later
Information 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


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