Following the 2026-04-20 cluster outage, the cluster README now covers
HA resource limits, corosync token tuning (10s tolerance for USB glitches),
rasdaemon/netconsole/kdump diagnostic stack on pvemini, mail relay via
mail.romfast.ro with SMTP auth, OOM alerting via cron, and swap on pveelite.
VM 109 README now clearly states it was removed from HA and is only
started by the weekly DR test script.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The DR test script used set -euo pipefail, so a failing SSH
shutdown command caused the script to exit before qm stop.
On 2026-04-20 this left VM 109 running for 2.5 days and
triggered an OOM cascade when pvemini HA-failed over to
pveelite.
Adds EXIT trap that force-stops VM 109 regardless of exit
path, and makes the Step 7 SSH shutdown tolerant of failure.
Incident details: proxmox/cluster/incidents/2026-04-20-cluster-outage.md
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
- Create cluster/ for Proxmox cluster infrastructure (SSH guide, HA monitor, UPS)
- Create lxc108-oracle/ for Oracle Database documentation and scripts
- Create vm201-windows/ for Windows 11 VM docs and SSL certificate scripts
- Add SSL certificate monitoring scripts (check-ssl-certificates.ps1, monitor-ssl-certificates.sh)
- Remove archived VM107 references (decommissioned)
- Update all cross-references between files
- Update main README.md with new structure and navigation
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
