Disaster Recovery
pve0-core Failure (Network Down)
pve0-core hosts OPNsense with NIC passthrough. If it goes down, the entire network loses routing and internet access. This is the highest-impact failure scenario.
Standby Router — MikroTik hAP ac2
A MikroTik hAP ac2 is kept on standby with a bare-minimum config. In the event of a pve0-core failure during critical hours (e.g. WFH), it can be swapped in to restore basic connectivity while pve0-core is recovered.
| Field | Detail |
|---|---|
| Device | MikroTik hAP ac2 |
| Config | Bare minimum — basic WAN/LAN routing + WiFi |
| Purpose | Temporary network continuity during pve0-core outage |
Recovery Steps
- Bring up the MikroTik hAP ac2 as a temporary router to restore internet access
- SSH into
pve1-mediadirectly (still accessible on LAN) to check what's running - Diagnose pve0-core — hardware failure, Proxmox issue, or OPNsense VM crash
- If OPNsense VM crash: restart the VM via Proxmox console
- If pve0-core hardware failure: restore OPNsense from backup on another machine, or rebuild from Proxmox backup on pve1-media (
zpool0/pve-backup/pve0-core)