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Operator: 'unless of course the thing trips the circuit anyway.' Correct, and it splits into two halves with different answers. A breaker trip is the event the split-power proposal survives: firewall + BMC is 25-40 W on a 1500 VA unit, which is hours of battery, and on a trip the UPS stops being a load-bearing supply and goes back to being what it is for. What it does NOT cover is the colo's own handoff -- their switch, ONT or demarc. If that sits on the circuit we just tripped, the outcome is a firewall running on battery with nothing upstream to talk to and the drive happens anyway. Added as a question for the facility, because it decides whether split power delivers remote diagnosis or merely feels like it does. Records the case where none of it matters: removing an undersized UPS does not remove the constraint, it promotes the next one -- UPS ~900-1200 W to circuit ~1800 W at 15 A or ~2400 W at 20 A. Which side the four-card figure lands on decides everything, which is what makes that single ammeter reading the load-bearing measurement of the visit. Surfaces the lever that may avoid an electrician entirely: nvidia-smi -pl caps per-card TGP, so the box can be made to fit its feed at a throughput cost rather than a rewiring cost. Read nvidia-smi -q -d POWER for the enforced range before assuming how much room the dial has, and persist any cap -- one that evaporates on reboot will hold right up until the next power event and then silently stop holding.
docs/
Navigation map for the documentation tree. New session? Read
orientation.md first — it's the narrative overview
of the fleet, backup architecture, governing principles, and gotchas,
and it points at everything else.
Tree
docs/
├── orientation.md # start here — fleet overview + where-to-look guide
├── runbooks/ # ops runbooks (recovery, deployment phases)
│ ├── disaster-recovery.md
│ ├── nh3-prune-ritual.md
│ └── pbs-deployment.md
└── pfi/ # PFI-specific reference (services, models, VMs)
├── docker-stack.md
├── model-list.md
├── proxmox-vms.md
├── recommended-model-settings.md
├── vm-102-matrix-appservice.md
└── vm-102-matrix-synapse.md
What goes where
runbooks/— step-by-step ops procedures. Anything you'd reach for during an incident or while standing up new infrastructure. Examples: disaster recovery (blast-radius tiers + restoration steps), PBS deployment (9-phase rollout). New runbook → new file here.pfi/— PFI-specific reference material that's too narrow for the top-level CLAUDE.md but doesn't change incident response. AI model inventory, recommended inference settings, Matrix bridge config, Proxmox VM map. New stable reference → new file here.- Top-level (
docs/orientation.md,docs/README.md) — narrative guides about the workspace itself, not about specific infra.
Cross-references
- Fleet topology + servers table: top-level
CLAUDE.md. - Open work + recent milestones: top-level
STATUS.md. - Durable cross-session facts:
~/.claude/projects/-home-lkraven-development-eshpfi-management/memory/.
Conventions
- Markdown, GitHub-flavored. CommonMark renders fine in most viewers.
- File names are lowercase-kebab-case, descriptive. No dates in filenames — git history covers that.
- One topic per file. If a file grows past ~500 lines, look for a natural split before adding more.
- No checked-in binaries or checksums. Build/release artifacts belong
in a build pipeline or
tools/, notdocs/.