Alert thresholds depend on the nature of your applications. Some queries may have arbitrary tolerance thresholds. Building an efficient monitoring platform takes time. 😉
5 Prometheus alerting rules for Windows Server. Exported via prometheus-community/windows_exporter. These rules cover critical and warning conditions — copy and paste the YAML into your Prometheus configuration.
groups:
- name: WindowsExporter
rules:
- alert: WindowsServerCollectorError
expr: windows_exporter_collector_success == 0
for: 0m
labels:
severity: critical
annotations:
summary: Windows Server collector Error (instance {{ $labels.instance }})
description: "Collector {{ $labels.collector }} was not successful\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: WindowsServerServiceStatus
expr: windows_service_status{status="ok"} != 1
for: 1m
labels:
severity: critical
annotations:
summary: Windows Server service Status (instance {{ $labels.instance }})
description: "Windows Service state is not OK\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: WindowsServerCPUUsage
expr: 100 - (avg by (instance) (rate(windows_cpu_time_total{mode="idle"}[2m])) * 100) > 80
for: 0m
labels:
severity: warning
annotations:
summary: Windows Server CPU Usage (instance {{ $labels.instance }})
description: "CPU Usage is more than 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: WindowsServerMemoryUsage
expr: 100 - ((windows_os_physical_memory_free_bytes / windows_cs_physical_memory_bytes) * 100) > 90
for: 2m
labels:
severity: warning
annotations:
summary: Windows Server memory Usage (instance {{ $labels.instance }})
description: "Memory usage is more than 90%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"
- alert: WindowsServerDiskSpaceUsage
expr: 100 - 100 * (windows_logical_disk_free_bytes / windows_logical_disk_size_bytes) > 80 and windows_logical_disk_size_bytes > 0
for: 2m
labels:
severity: critical
annotations:
summary: Windows Server disk Space Usage (instance {{ $labels.instance }})
description: "Disk usage is more than 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" wget https://raw.githubusercontent.com/samber/awesome-prometheus-alerts/refs/heads/master/dist/rules/windows-server/windows-exporter.yml
Collector {{ $labels.collector }} was not successful
- alert: WindowsServerCollectorError
expr: windows_exporter_collector_success == 0
for: 0m
labels:
severity: critical
annotations:
summary: Windows Server collector Error (instance {{ $labels.instance }})
description: "Collector {{ $labels.collector }} was not successful\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" Windows Service state is not OK
- alert: WindowsServerServiceStatus
expr: windows_service_status{status="ok"} != 1
for: 1m
labels:
severity: critical
annotations:
summary: Windows Server service Status (instance {{ $labels.instance }})
description: "Windows Service state is not OK\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" CPU Usage is more than 80%
- alert: WindowsServerCPUUsage
expr: 100 - (avg by (instance) (rate(windows_cpu_time_total{mode="idle"}[2m])) * 100) > 80
for: 0m
labels:
severity: warning
annotations:
summary: Windows Server CPU Usage (instance {{ $labels.instance }})
description: "CPU Usage is more than 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" Memory usage is more than 90%
- alert: WindowsServerMemoryUsage
expr: 100 - ((windows_os_physical_memory_free_bytes / windows_cs_physical_memory_bytes) * 100) > 90
for: 2m
labels:
severity: warning
annotations:
summary: Windows Server memory Usage (instance {{ $labels.instance }})
description: "Memory usage is more than 90%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}" Disk usage is more than 80%
- alert: WindowsServerDiskSpaceUsage
expr: 100 - 100 * (windows_logical_disk_free_bytes / windows_logical_disk_size_bytes) > 80 and windows_logical_disk_size_bytes > 0
for: 2m
labels:
severity: critical
annotations:
summary: Windows Server disk Space Usage (instance {{ $labels.instance }})
description: "Disk usage is more than 80%\n VALUE = {{ $value }}\n LABELS = {{ $labels }}"