I *think* these calculate the time-to-full:
- name: DiskRate10m
interval: 1m
rules:
# Warn if rate of growth over last 10 minutes means filesystem will fill
in 2 hours
- alert: DiskFilling10m
expr: |
node_filesystem_avail_bytes / (node_filesystem_avail_bytes -
(predict_linear(node_filesystem_avail_bytes{fstype!~"fuse.*|nfs.*"}[10m],
7200) < 0)) * 7200
for: 20m
labels:
severity: warning
annotations:
summary: 'Filesystem will be full in {{ $value | humanizeDuration }}
at current 10m growth rate'
- name: DiskRate3h
interval: 10m
rules:
# Warn if rate of growth over last 3 hours means filesystem will fill in
2 days
- alert: DiskFilling3h
expr: |
node_filesystem_avail_bytes / (node_filesystem_avail_bytes -
(predict_linear(node_filesystem_avail_bytes{fstype!~"fuse.*|nfs.*"}[3h],
172800) < 0)) * 172800
for: 6h
labels:
severity: warning
annotations:
summary: 'Filesystem will be full in {{ $value | humanizeDuration }}
at current 3h growth rate'
- name: DiskRate12h
interval: 1h
rules:
# Warn if rate of growth over last 12 hours means filesystem will fill in
7 days
- alert: DiskFilling12h
expr: |
node_filesystem_avail_bytes / (node_filesystem_avail_bytes -
(predict_linear(node_filesystem_avail_bytes{fstype!~"fuse.*|nfs.*"}[12h],
604800) < 0)) * 604800
for: 24h
labels:
severity: warning
annotations:
summary: 'Filesystem will be full in {{ $value | humanizeDuration }}
at current 12h growth rate'
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