Master Disk I/O Metrics Monitoring
Monitoring Disk I/O Metrics with Prometheus and Grafana Disk IOPS (input/output per second) stats are metrics that gives you insights on how your system interact with your storage devices. These metrics measure read and write operations. Fundamental Disk IOPS metrics IOPS (Input/Output Per Second) IOPS stats measures how many Input(write)/Output(read) transaction your storage devices perform per second. IOPS metrics are exported by node exporter. irate(node_disk_reads_completed_total[$__rate_interval]) irate(node_disk_writes_completed_total[$__rate_interval]) IOPS depends on your disk but a higher number generally mean better performance, but a context matter , IOPS metrics is meaningless without a latencey figure: ...