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feat: add ZFS monitoring (#2209)

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- track pool capacity, health, I/O, scrub status, and vdev errors
- report dataset usage and correct ZFS filesystem metrics
- add pool charts, detail views, refresh controls, and health alerts
- persist pool details and include ZFS usage in disk alerts
- support configurable detail intervals and legacy agent compatibility

---------

Co-authored-by: hank <hank@henrygd.me>
This commit is contained in:
Tamás Vince
2026-09-01 18:19:36 +02:00
committed by GitHub
parent b38fb7dafa
commit 917d069ab3
46 changed files with 3768 additions and 15 deletions
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31
internal/alerts/alerts_system.go
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@@ -44,6 +44,14 @@ func (am *AlertManager) HandleSystemAlerts(systemRecord *core.Record, data *syst
maxUsedPct = usedPct
}
}
for _, pool := range data.Stats.ZfsPools {
if pool != nil && pool.Total > 0 {
usedPct := pool.Used / pool.Total * 100
if usedPct > maxUsedPct {
maxUsedPct = usedPct
}
}
}
val = maxUsedPct
case "Temperature":
if data.Info.DashboardTemp < 1 {
@@ -208,6 +216,16 @@ func (am *AlertManager) HandleSystemAlerts(systemRecord *core.Record, data *syst
alert.mapSums[key] += float32(fs.DiskUsed / fs.DiskTotal * 100)
}
}
// add zfs pool usage from historical record
for key, pool := range stats.ZfsPools {
if pool.Total > 0 {
zfsKey := zfsDiskAlertKey(key)
if _, ok := alert.mapSums[zfsKey]; !ok {
alert.mapSums[zfsKey] = 0.0
}
alert.mapSums[zfsKey] += float32(pool.Used / pool.Total * 100)
}
}
case "Temperature":
if alert.mapSums == nil {
alert.mapSums = make(map[string]float32, len(stats.Temperatures))
@@ -255,7 +273,7 @@ func (am *AlertManager) HandleSystemAlerts(systemRecord *core.Record, data *syst
sumPct := float32(value)
if sumPct > maxPct {
maxPct = sumPct
alert.descriptor = fmt.Sprintf("Usage of %s", key)
alert.descriptor = diskAlertDescriptor(key)
}
}
alert.val = float64(maxPct / float32(alert.count))
@@ -301,6 +319,17 @@ func (am *AlertManager) HandleSystemAlerts(systemRecord *core.Record, data *syst
return nil
}
func zfsDiskAlertKey(poolName string) string {
return "zfs:" + poolName
}
func diskAlertDescriptor(key string) string {
if poolName, ok := strings.CutPrefix(key, "zfs:"); ok {
return fmt.Sprintf("Usage of ZFS pool %s", poolName)
}
return fmt.Sprintf("Usage of %s", key)
}
func hasRepresentativeBattery(legacy [2]uint8, batteries map[string]uint8) bool {
return legacy != [2]uint8{} || len(batteries) > 0
}