CentOS Stream 10 – Common Problem 095 – Diagnosis and Fix

📖 ~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

XFS project quotas not enforced after enabling on CentOS Stream 10 disrupts services and slows incident response until the root cause is resolved.

Environment & Reproduction

Quotas configured in /etc/projects do not block writes because pquota was not mounted.

mount | grep xfs
xfs_quota -x -c 'report -p' /data

Root Cause Analysis

Misalignment between storage configuration and CentOS Stream 10 defaults causes the failure path described above.

Quick Triage

Confirm package state, service status, and recent changes before deeper diagnostics.

systemctl status
rpm -qa | grep -i 
journalctl -p err -b --no-pager | tail -100

Step-by-Step Diagnosis

Capture detailed logs, configuration deltas, and runtime state to isolate the failing component.

xfs_quota -x -c 'state -p' /data
cat /etc/fstab
xfs_info /data

Solution – Primary Fix

Apply the targeted configuration change and restart the relevant services to restore expected behavior.

sudo umount /data
sudo mount -o remount,prjquota /data
sudo xfs_quota -x -c 'project -s -p /data/proj 100' /data
sudo xfs_quota -x -c 'limit -p bhard=100g 100' /data

Solution – Alternative Approaches

Use directory ACLs for soft limits when quota remount is disruptive.

Verification & Acceptance Criteria

Validate the fix with deterministic checks and ensure no regressions in dependent services.

xfs_quota -x -c 'report -p' /data
dd if=/dev/zero of=/data/proj/test bs=1M

Rollback Plan

Revert configuration and restart services to return to the previous known-good state.

sudo umount /data && sudo mount /data

Prevention & Hardening

Set pquota in fstab from the start to avoid remount outage.

Related Errors & Cross-Refs

Related: xfs prjquota, /etc/projects; see also adjacent topics in the CentOS Stream 10 common problems series.

Related tutorial: View the step-by-step tutorial for centos-stream-10.

View all centos-stream-10 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

CentOS Stream documentation, Red Hat upstream guides, and CentOS Stream 10 release notes covering this subsystem.