Filesystem Full On LVM Volume

📖 ~1 min read

Table of contents

1. Symptom & Impact
2. Environment & Reproduction
3. Root Cause Analysis
4. Quick Triage
5. Step-by-Step Diagnosis
6. Solution – Primary Fix
7. Solution – Alternative Approaches
8. Verification & Acceptance Criteria
9. Rollback Plan
10. Prevention & Hardening
11. Related Errors & Cross-Refs
12. References & Further Reading

Symptom & Impact

Applications fail with no space left on device while host remains online.

Environment & Reproduction

Logical volume allocation reached capacity and auto-growth is not configured.

Root Cause Analysis

Run df -h, lvs, vgs, and journalctl -p err -b for write or inode-related failures.

Quick Triage

Free immediate space by rotating logs and removing stale caches with dnf clean packages if needed.

Step-by-Step Diagnosis

Extend LV using sudo lvextend -L +20G /dev// after confirming free extents.

Solution – Primary Fix

Grow filesystem online with xfs_growfs or resize2fs based on filesystem type.

Solution – Alternative Approaches

Check df -h and ensure affected services recover with sudo systemctl restart .

Verification & Acceptance Criteria

If growth causes issues, restore from snapshot or backup according to policy.

Rollback Plan

Set capacity thresholds and implement predictable retention for logs and artifacts.

Prevention & Hardening

Alert at 75/85/95 percent utilization for all critical mount points.

Related Errors & Cross-Refs

Schedule periodic cleanup and proactive LV expansion workflows where policy allows.

Related tutorial: View the step-by-step tutorial for rhel-9.

View all rhel-9 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

Review LVM, XFS, and ext4 administration docs in official RHEL 9 references.