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docs: add disk activity query. (#1889)

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Signed-off-by: Jan-Otto Kröpke <github@jkroepke.de>
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Jan-Otto Kröpke 2025-02-18 13:41:26 +01:00 committed by GitHub
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docs/collector.logical_disk.md
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@ -69,6 +69,23 @@ Show volume usage (%)
100.0 - 100 * (windows_logical_disk_free_bytes{instance="localhost", volume="C:"} / windows_logical_disk_size_bytes{instance="localhost", volume="C:"})
```
Disk Activity
```promql
(
rate(windows_logical_disk_read_seconds_total[2m])
+
rate(windows_logical_disk_write_seconds_total[2m])
)
/
(
rate(windows_logical_disk_read_seconds_total[2m])
+
rate(windows_logical_disk_write_seconds_total[2m])
+
rate(windows_logical_disk_idle_seconds_total[2m])
)
```
## Alerting examples
**prometheus.rules**
```yaml