Setting Up Disk Space Alerts

Why Disk Space Matters

Running out of disk space is one of the most common causes of server failures. It can crash databases, prevent log writing, and stop applications from functioning.

Default Thresholds

Xitogent monitors all mounted partitions and applies default alert thresholds:

Level	Threshold	Action
Warning	80%% used	Notification via configured channels
Critical	90%% used	Escalation policy triggered
Emergency	95%% used	Immediate phone/SMS alert

Customizing Thresholds

Per-Server

1. Go to Servers → [Server Name] → Disk
2. Click the gear icon next to any partition
3. Set custom warning, critical, and emergency thresholds
4. Optionally exclude partitions from monitoring

Per-Group

Apply disk thresholds to a server group:

1. Go to Settings → Server Groups
2. Select or create a group
3. Under Alert Policies, set disk thresholds
4. All servers in the group inherit these settings

Disk I/O Monitoring

Beyond capacity, Xitogent also monitors:

• Read/write throughput (MB/s)
• I/O operations per second (IOPS)
• I/O wait percentage – High I/O wait means the CPU is idle waiting for disk operations
• Queue depth – Number of pending I/O requests

Tips

• Set alerts at 80%% to give yourself time to react
• Use the Disk Forecast feature to predict when a partition will be full based on growth trends
• Exclude /snap and /boot partitions to reduce noise