Design principle: the IT stack must be modular, isolatable, and non-critical.
It must fail in a way that does not impair propulsion, steering, nav, comms, bilge pumps, or safety.
Baseline requirements (from spec)
16-port managed switch in each hull
16-port managed switch at nav station
3U server in each hull (R720xd class), with large storage and a GPU
Raspberry Pi integration hub in each hull
Raspberry Pi touch panels: cabins, cockpit, salon, galley, engine bays/holds
Each Pi: UPS/battery hat (90 min runtime at 50% load), weatherproof enclosure, airflow for 100F ambient
To be added later
Power and cooling budget; EMI/corrosion protection; spares strategy.
Network segmentation: boat systems vs media vs guest.