cc72a5f96e
Adds complete procedure for replacing UPS battery when entire cluster is powered by the same UPS, requiring full cluster shutdown. New files: - scripts/ups-maintenance-shutdown.sh: Automated orchestrated shutdown for maintenance operations with confirmation prompts and progress display - docs/UPS-BATTERY-REPLACEMENT.md: Complete step-by-step guide for battery replacement including pre-shutdown, physical replacement, and post-startup verification procedures Features: - Orchestrated shutdown: VMs → LXC containers → secondary nodes → primary - Interactive confirmation before shutdown - Color-coded progress indicators - Countdown timers for each phase - Post-replacement verification checklist - Troubleshooting guide for common issues - Recovery procedures for cluster/quorum problems The procedure accounts for all 3 cluster nodes (pve1, pvemini, pveelite) being on the same UPS, requiring complete infrastructure shutdown. Documentation includes: - When to replace battery (based on monthly test results) - Pre-planning and user notification templates - Physical battery replacement safety procedures - Cluster recovery and VM restart procedures - Post-replacement testing and verification - 24-hour and 1-week monitoring checklists Estimated maintenance window: 30-60 minutes 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>