🔴 Critical   ⏱ 5–30 min  Last verified: 19 May 2026
Affected versions: SUSE Linux Enterprise Server 15

📖 ~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

VolumeGroup is degraded and dependent volumes refuse to activate, halting database services.

Environment & Reproduction

Triggered after SAN reconfiguration or disk swap on SLES 15 storage nodes.

Root Cause Analysis

PV UUID metadata cannot be located because the device path or WWID changed.

Quick Triage

Run `pvs`, `vgs`, and `lvs` and look for `[unknown]` PVs in the output.

Step-by-Step Diagnosis

Use `vgcfgrestore –list` to list metadata backups and identify the last good revision.

Illustrative mockup for sles-15 — storage_lvm-pv-missing_terminal
Terminal diagnostics for LVM physical volume missing after disk replacement — Illustrative mockup — Progressive Robot

Solution – Primary Fix

Replace the failed PV with `pvcreate –restorefile` and `vgcfgrestore`, then `vgchange -ay`.

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Illustrative mockup for sles-15 — storage_lvm-pv-missing_logs
Logs and evidence for LVM physical volume missing after disk replacement — Illustrative mockup — Progressive Robot

Solution – Alternative Approaches

Re-add the new disk into the VG with `vgextend` and migrate data using `pvmove`.

Verification & Acceptance Criteria

All LVs activate, filesystems mount, and applications resume normal IO.

Rollback Plan

Restore from backup if metadata restoration fails or produces inconsistent state.

Prevention & Hardening

Use multipath WWID-based persistent names and monitor PV health.

Common with `Couldn’t find device with uuid` warnings in dmesg.

Related tutorial: View the step-by-step tutorial for sles-15.

View all sles-15 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

SUSE LVM administration guide and multipath configuration documentation.

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