📖 ~1 min read
Table of contents
Symptom & Impact
Core services fail or restart repeatedly when root filesystem is 100%, causing platform instability.
Environment & Reproduction
Common on long-lived hosts with growing logs, package caches, and unrotated application artifacts.
Root Cause Analysis
Root LV capacity exhausted by logs, yum cache, or orphaned files; journald and service writes begin failing.
Quick Triage
Run `df -h`, `du -x`, check `journalctl –disk-usage`, and inspect systemctl failed units for write errors.
Step-by-Step Diagnosis
Identify top consumers, verify LVM free extents, and inspect service logs for ENOSPC conditions.
Solution – Primary Fix
Free immediate space, extend LV/filesystem, restart impacted services, and restore normal write operations.
Still having issues? Our IT Solutions & Services team can diagnose and resolve this for you. Get in touch for a free consultation.
Solution – Alternative Approaches
Move heavy paths to dedicated volumes, tune logrotate, and cap journald retention aggressively.
Verification & Acceptance Criteria
Sustained free-space threshold is restored and previously failed services remain active.
Rollback Plan
If LV extension causes issues, revert from snapshot or restore from storage backup plan.
Prevention & Hardening
Set filesystem alerts, automate cleanup of yum cache, and enforce retention on large data paths.
Related Errors & Cross-Refs
`yum clean all && journalctl –vacuum-size=500M && systemctl –failed`
Related tutorial: View the step-by-step tutorial for rhel-7.
View all rhel-7 tutorials on the Tutorials Hub →
Browse all common problems & solutions on the Tutorials Hub.
References & Further Reading
RHEL 7 LVM administration and capacity planning documentation for production Linux servers.
Need Expert Help?
If you cannot resolve this yourself, our team offers hands-on Server Management, Managed IT Services, and flexible Support Plans. Contact us today — we respond within one business day.
