IBM AIX 7.2 – Common Problem 248 – 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

startwpar fails with rsh, mount, or device errors and the WPAR stays in B state.

Environment & Reproduction

Hit after global AIX TL update, network change, or shared filesystem unavailability.

Root Cause Analysis

WPAR cannot mount its rootvg or reach required network resources at start.

Quick Triage

Run lswpar and lswpar -G to see state and configuration.

Step-by-Step Diagnosis

Inspect /var/adm/wpars/wparname.log and global errpt for startwpar errors.

Solution – Primary Fix

Repair mounts in /etc/wpars/wparname.cf and run startwpar -v wparname.

Solution – Alternative Approaches

Use chwpar to adjust networking or storage stanzas if the original config drifted.

Verification & Acceptance Criteria

lswpar shows A (Active) and apps inside the WPAR start cleanly.

Rollback Plan

Run stopwpar -F wparname and revert the cf file from backup if startup regresses.

Prevention & Hardening

Take wpar backups with savewpar and validate after each global TL update.

Related Errors & Cross-Refs

Related to NFS mount issues, network interface flaps, and shared rootvg outages.

Related tutorial: View the step-by-step tutorial for aix-7.2.

View all aix-7.2 tutorials on the Tutorials Hub →

Browse all common problems & solutions on the Tutorials Hub.

References & Further Reading

IBM AIX 7.2 WPAR administration documentation.