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Laconian Engineeringhomelab · systems · signal

In the rack

Last verified: 2026-04-21

The kit currently running the house, the theatre, and the lab. Public list — some of the sharper edges (personal devices, keys, tokens) are deliberately not on this page.

Cerberus

Unraid server. ASRock Z390 Extreme4, i7-8700K, 78 GB RAM, RTX 2060. Wired into VLAN 30 at 192.168.30.10.

The array is 7 disks — one parity, six data. Raw capacity 88 TB, currently 70.8 TB used with 17.2 TB free.

Array

ModelSizeRole
Seagate ST20000NM007D20 TBparity
WD Red6 TBdata
WD Red6 TBdata
Seagate Exos20 TBdata
Seagate Exos20 TBdata
HGST Ultrastar16 TBdata
WD Red Pro20 TBdata

Cache

ModelSizeRole
Samsung 990 Pro4 TB NVMeapps / system — 412 GB used
Toshiba MQ01ABD1001 TB HDDdownloads — 443 GB used

Boot is a 257 GB USB flash. Transcode ceiling is five concurrent Plex streams on the 2060 — enough that the family has never had to wait.

Oceanus

Synology 6-bay with a DX517 5-bay expansion bolted on. SHR with single-drive tolerance. 130.9 TB total, 108 TB allocated across volumes, 22.9 TB free at the pool level.

Main unit

ModelSizeRole
WD Red10.9 TBdata
WD Red10.9 TBdata
WD Red10.9 TBdata
WD Red10.9 TBdata
Seagate IronWolf14.6 TBdata
Seagate IronWolf14.6 TBdata

DX517 expansion

ModelSizeRole
Seagate IronWolf14.6 TBdata
Seagate IronWolf14.6 TBdata
Seagate IronWolf14.6 TBdata
Seagate IronWolf14.6 TBdata
Seagate IronWolf14.6 TBdata

Volume 2 is the one to watch — 102.6 TB used, 1 TB free. On the shortlist for the next drive swap.

Its day job is receiving LuckyBackup app data from Cerberus and keeping a bidirectional sync of documents to Google Drive.

Networking

Two boxes do the work. Poseidon is a UDM Pro handling routing, firewall, and DHCP. Hermes is a Cisco Catalyst 2960-X doing the L2 switching.

Everything is Cat6 direct runs. No IPv6 — not for ideological reasons, just one fewer surface to maintain.

VLANs

01 · 10 · 20 · 30 · 40 · 50 · 60

VLAN IDs listed without role labels on purpose.

Cameras

Two IP cameras — front door and back door. Audio is wired on both. Faces are indexed locally on Frigate; nothing leaves the network.

Home Theatre

Theatre-first. Everything in this stack is picked for the room, not the rack.

  • Epson EH-LS800 — ultra-short-throw laser projector
  • Denon AVR-X4800H — 11.4-channel receiver
  • Sofabaton X2 — universal remote, the glue that hides the complexity
  • Nvidia Shield Pro — primary source
  • Nintendo Switch 2 — second source

Motorised blinds are on the roadmap so the room can dim itself when a movie starts.

Smart Home

Less kit here than you might expect — most of the smart-home surface lives inside Home Assistant, not in hardware.

  • Three Google Nest speakers — mostly used for announcements and TTS pipelines
  • APC UPS — keeping the rack up through brownouts; battery is overdue for a physical swap

3D Printing

A Bambu Lab printer sitting outside Home Assistant for now — the HACS integration is on the list but not yet wired in.

[PLANNED]Planned

Enphase solar plus battery storage — the next big capital line item. The goal is enough on-roof generation to carry the rack through a daytime outage without touching the UPS.