Disk Space Report Generator
Prevented 3 server crashes
The Story
A system administrator was constantly dealing with servers running out of disk space, causing crashes and downtime. There was no proactive monitoring - they only found out when users complained about errors. They needed an automated system to monitor disk usage across all servers, generate regular reports, and send alerts before space ran out.
"We now know about disk issues weeks in advance. No more emergency midnight maintenance."
— @sysadmin_hero
🔧 How It Works
OpenClaw checks disk usage on all servers daily, generates visual reports with trends, and sends proactive alerts when usage exceeds thresholds.
1. Server Discovery
OpenClaw automatically discovered all servers on the network and began monitoring disk usage.
Used SSH keys to authenticate and ran df commands to collect current disk usage statistics.
2. Daily Scans
Scheduled daily scans of all servers to collect disk usage data and track trends over time.
Stored historical data in a database to analyze usage patterns and predict when disks would fill up.
3. Report Generation
Generated weekly summary reports with charts showing disk usage trends and largest directories.
Created visual reports with graphs highlighting servers with fastest growth and potential issues.
4. Proactive Alerts
Configured alert thresholds to notify the team before disks reached critical levels.
Sent warnings at 80% usage and critical alerts at 90%, with cleanup suggestions included.
Tech Stack Used
📊 Results
🛠️ OpenClaw Skills Used
Disk Monitoring
Tracks disk usage across servers
Trend Analysis
Predicts when disks will fill
Report Generation
Creates visual reports
Alerting
Sends proactive warnings
💡 Tips for Implementation
Set alerts at multiple thresholds (warning, critical)
Monitor not just root but all mount points
Track growth rates to predict future needs
Include cleanup suggestions in alerts
Archive old reports to analyze long-term trends
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