Drive and Filesystem Metrics

This page documents Prometheus metrics related to drives and filesystems across the Yellowbrick system. These metrics provide a unified view of both filesystem usage and drive health, covering information on mounted volumes and Yellowbrick data directories.

Purpose

Disk and drive metrics are critical for maintaining the reliability and performance of the system. They are used to:

• Monitor disk space consumption across mounted volumes and Yellowbrick-specific data directories
• Track filesystem capacity and usage as reported by the operating system
• Detect abnormal growth due to unflushed data, log buildup, or other anomalies

Together, these metrics enable proactive alerting, capacity planning, and detailed monitoring of the storage infrastructure.

Metrics

Name	Type	Freq	Labels	Version Introduced	Version Deprecated	Description
node_disk_usage_bytes	gauge	10s	path	7.3.0	-	Disk usage in bytes per mount
node_disk_usage_level_1_bytes	gauge	10s	path	7.3.0	-	Disk usage of level-1 files (e.g., rowstore)
yb_mount_avail_bytes	gauge	5m	-	7.4.0	-	Available bytes to non-root as reported by df.
yb_mount_used_bytes	gauge	5m	-	7.4.0	-	Used bytes as reported by df.