Frequently Asked Questions
Everything you need to know about Server Telemetry.
What is the performance overhead?
Negligible. The telemetry poller is a lightweight Perl script that reads from /proc and runs in under 50 milliseconds per sample. It writes to a local SQLite database, so there are no network calls or external service dependencies. Most servers won't notice any measurable impact.
How long is monitoring data stored?
30 days of high-resolution, minute-by-minute data. Older records are automatically purged to maintain a constant disk footprint — typically under 50MB for the full 30-day window.
What metrics are monitored?
CPU utilization (percentage across all cores), memory usage (used vs. total RAM), and load average at 1-minute, 5-minute, and 15-minute intervals. All metrics are sampled every 60 seconds.
Does it require MySQL or any external database?
No. Server Telemetry uses a local SQLite file stored within the plugin directory. Zero external dependencies — no MySQL, no Redis, no cloud services.
Which WHM/cPanel versions are supported?
WHM/cPanel versions 100+ on CentOS 7+, AlmaLinux 8+, CloudLinux 7+, or Rocky Linux 8+. Requires PHP 7.4+ and Perl 5.16+ (both standard on all supported OS versions).
How do I install Server Telemetry?
After subscribing, run a single shell command as root on your WHM server. The installer downloads the plugin package, sets permissions, and registers it. Takes under 30 seconds. See the Install Guide for the exact command.
Can I change my server hostname?
Yes. If you migrate to a new server, contact support to update the hostname on your subscription. The change takes effect within minutes.
How does the subscription work?
$19.99/month, no contracts. Your subscription is tied to a specific server hostname. Cancel anytime from the Stripe customer portal — the plugin works until the end of your billing period.