Introduction
Capacity reporting is a crucial part of maintaining a healthy infrastructure. Instead of checking cluster metrics manually, automate them using Nutanix’s ncli. This script provides daily insights into memory, CPU, and storage availability, perfect for operational dashboards and email alerts.
My Personal Repository on GitHub
Diagram: Scheduled Capacity Report Flow
Sample Output Fields
- Cluster UUID & Name
- Total/Used/Free CPU
- Total/Used/Free Memory
- Storage Container Usage
- Reserved Capacity Warnings
Bash Script: nutanix_capacity_report.sh
#!/usr/bin/env bash
set -euo pipefail
log="/var/log/nutanix_capacity_$(date +%F).log"
echo "[$(date)] Nutanix Cluster Capacity Summary" > "$log"
# Run capacity summary
ncli cluster get-summary >> "$log"
# Optional: parse and extract values for alerting
total_mem=$(ncli cluster get-summary | grep "Total Memory" | awk '{print $3 $4}')
used_mem=$(ncli cluster get-summary | grep "Used Memory" | awk '{print $3 $4}')
echo "Memory Usage: $used_mem of $total_mem" >> "$log"
Schedule with Cron
30 5 * * * /usr/local/bin/nutanix_capacity_report.sh
This runs daily at 5:30 AM and logs output for analysis or email.
Optional Add-On: Email Report
mailx -s "Daily Nutanix Capacity Report" ops@example.com < "$log"
Summary
By automating Nutanix capacity reports using ncli, you stay ahead of resource constraints. These reports offer early insights into bottlenecks, VM sprawl, and storage planning needs.
External Documentation:
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