Add session hand-off document

Summarises hardware, all repo files and their status, what still needs
to be written (walkthrough-phases-10-12.md and complete-walkthrough.md),
detailed notes on what phases 10-12 should cover, and key facts/gotchas
for whoever picks this up next.

https://claude.ai/code/session_01TxTSnxDjgEVuNztdsWQjMD

docs/handoff.md

@@ -0,0 +1,143 @@
+# Session Hand-off Document
+## Dell R730xd — Proxmox VE 9.1 Homelab Setup
+
+**Branch:** `claude/proxmox-hardware-passthrough-ylAYx`
+**Repo:** `outis1one/local_proxmox`
+
+---
+
+## Hardware Summary
+
+| Component | Detail |
+|-----------|--------|
+| Server | Dell PowerEdge R730xd |
+| RAID controller | PERC H730 (configured in per-disk non-RAID mode for 3.5" drives) |
+| OS drives | 2x 2.5" rear drives — RAID1 mirror via H730 |
+| Data drives | Up to 12x 3.5" bays (not all populated) |
+| GPUs | 2x Quadro P2200 5GB (VFIO passthrough, one per VM) |
+| TPU | Google Coral USB (Frigate object detection, VM 100) |
+| iDRAC | iDRAC8 **Express** — no virtual console, no virtual media |
+| PSU | 750W (single or redundant pair — stagger spin-up configured to protect PSU) |
+
+## VM Layout
+
+| VM ID | Role | Drives | GPU | Coral |
+|-------|------|--------|-----|-------|
+| 100 | Frigate NVR | Bays 1–8 | P2200 #1 | Yes |
+| 101 | General purpose | Bays 9–10 | P2200 #2 | No |
+| 102 | Utility/storage | Bays 11–12 | None | No |
+
+---
+
+## What Is In The Repo
+
+### scripts/
+| File | Purpose | Status |
+|------|---------|--------|
+| `perc-nonraid.sh` | Converts H730 3.5" drives to per-disk non-RAID mode | Done |
+| `build-bay-map.sh` | Maps physical bay numbers to /dev/disk/by-id paths via LED blink | Done |
+| `gpu-passthrough-setup.sh` | Configures IOMMU + vfio-pci for both Quadro P2200s | Done |
+| `fan-control.sh` | Manages fan speed via ipmitool — prevents 100% fan from non-Dell GPU | Done |
+| `fan-control.service` | Systemd unit for fan-control.sh | Done |
+| `stagger-spinup.sh` | Staggers drive spin-up at boot to limit PSU current surge | Done |
+| `stagger-spinup.service` | Systemd unit for stagger-spinup.sh | Done |
+
+### vm-configs/
+| File | Purpose | Status |
+|------|---------|--------|
+| `100-frigate.conf.example` | VM 100 skeleton — GPU, Coral USB, 8 drive slots | **Needs PLACEHOLDER_BAYx filled in after Phase 8** |
+| `101.conf.example` | VM 101 skeleton — GPU #2, 2 drive slots | **Needs PLACEHOLDER_BAYx filled in after Phase 8** |
+| `102.conf.example` | VM 102 skeleton — 2 drive slots | **Needs PLACEHOLDER_BAYx filled in after Phase 8** |
+
+### frigate/
+| File | Purpose | Status |
+|------|---------|--------|
+| `docker-compose.yml` | Frigate container with nvidia runtime + Coral USB | Done |
+| `config.yml` | Frigate config — NVDEC hwaccel, Coral detector, recording | **Needs real camera RTSP URLs added** |
+
+### docs/
+| File | Purpose | Status |
+|------|---------|--------|
+| `hardware-layout.md` | Bay/VM/GPU mapping worksheet | **Needs filling in after Phase 8** |
+| `setup-guide.md` | High-level 12-phase overview | Done |
+| `walkthrough-phases-1-3.md` | Full button-by-button: Firmware, iDRAC, BIOS | Done |
+| `walkthrough-phases-4-6.md` | Full button-by-button: H730 RAID, Proxmox install, post-install | Done |
+| `walkthrough-phases-7-9.md` | Full button-by-button: non-RAID drives, bay map, GPU passthrough | Done |
+| `walkthrough-phases-10-12.md` | Fan control, VM creation, Frigate deploy | **NOT WRITTEN YET** |
+| `complete-walkthrough.md` | All phases combined into one document | **NOT WRITTEN YET** |
+
+---
+
+## What Still Needs To Be Done
+
+### 1. Write `docs/walkthrough-phases-10-12.md`
+
+Three phases to cover in full button-by-button detail:
+
+**Phase 10 — Fan control + stagger spin-up services**
+- Copy fan-control.sh to /usr/local/sbin/, install and enable systemd service
+- Verify fans slow down within 30 seconds (ipmitool sdr type Fan)
+- Run stagger-spinup.sh --idrac for BIOS-level config (or iDRAC web UI path)
+- Install stagger-spinup.service, enable (don't start manually — runs at boot)
+
+**Phase 11 — Create VMs in Proxmox web UI**
+- Upload Ubuntu 24.04 LTS ISO to Proxmox local storage
+- Create VM 100 via web UI: General → OS → System (q35, OVMF, VirtIO SCSI Single) → Disks → CPU (host type) → Memory → Network
+- Add hardware to VM 100: PCI device (GPU, All Functions, Primary GPU, PCI-Express), two USB devices (Coral 1a6e:089a and 18d1:9302), data drives via CLI (qm set)
+- Install Ubuntu inside each VM via Proxmox console
+- Repeat for VMs 101 and 102 (simpler — no Coral, different GPU or no GPU)
+- Find VM IP addresses
+
+**Phase 12 — Frigate inside VM 100**
+- SSH into VM 100 guest OS
+- Install Docker (get.docker.com script)
+- Install nvidia-driver-535, reboot, verify with nvidia-smi
+- Install nvidia-container-toolkit, configure Docker runtime, test with docker run nvidia-smi
+- Create ZFS pool from 8 data drives (raidz2 recommended)
+- Clone repo or copy frigate/ directory
+- Edit config.yml with real camera RTSP URLs
+- docker compose up -d, watch logs
+- Access web UI at http://vm100-ip:5000
+
+### 2. Write `docs/complete-walkthrough.md`
+
+Combine walkthrough-phases-1-3.md + 4-6.md + 7-9.md + 10-12.md (once written)
+into a single document. Remove the "next file" references at the end of each
+phase section. Add a table of contents at the top.
+
+---
+
+## Key Facts To Know
+
+- **iDRAC Express** — no KVM, no virtual media. Physical monitor + keyboard
+  required through Phase 5 (Proxmox installer). After that SSH only.
+- **iDRAC default credentials:** root / calvin — must be changed (Phase 2)
+- **iDRAC static IP** set in Phase 2 — needed for fan control ipmitool commands
+- **IPMI over LAN** must be enabled in iDRAC (Phase 2) for fan control to work
+- **Boot mode must be UEFI** (Phase 3) — legacy BIOS breaks gpu-passthrough-setup.sh
+- **VT-d must be Enabled** (Phase 3) — most common reason passthrough silently fails
+- **H730 OS drives** — the 2x 2.5" rear drives are RAID1 and must NOT be touched
+  by perc-nonraid.sh. The script targets only UGood (unconfigured) drives.
+- **Quadro P2200** — 75W TDP, no external power connector needed, no Code 43
+  issue, NVDEC handles H.264/H.265 decode for Frigate with near-zero CPU usage
+- **Coral USB re-enumerates** — passes through as 1a6e:089a before first
+  inference, then 18d1:9302 after. Both USB entries must be in the VM config.
+- **Fan control** uses raw IPMI commands to iDRAC over LAN — works on Express
+
+---
+
+## Script Run Order (for reference)
+
+When Proxmox is installed and SSH is working:
+
+```
+1. dpkg -i perccli_*.deb
+2. bash scripts/perc-nonraid.sh          → reboot
+3. bash scripts/build-bay-map.sh         → fill in hardware-layout.md and vm-configs
+4. bash scripts/gpu-passthrough-setup.sh → note PCI addresses, reboot
+5. install fan-control.sh + .service     → verify fans slow down
+6. install stagger-spinup.sh + .service
+7. create VMs via Proxmox web UI
+8. install Ubuntu in each VM
+9. set up Frigate in VM 100
+```