# `[2026-08-28]` The `sec` pen-test seat moved GPU1 → GPU0 and came up — on a circuit that tripped 36h earlier

Operator-directed. `sec` = M.O.G.-SEC-27B (`stacks/mog-sec/`, LiteLLM aliases `sec` /
`sec-reasoning`, ana-ml2 `:8019`, 262K native ctx, NVFP4+FP8 mixed with a grafted MTP head).

## Why it had to move

    GPU1  69,895 MiB used of 97,887 — gen 46 GB + embed 9.8 + coder 8.4 + rerank 3.5 + reward 2.1
          -> ~28 GB free, against the ~51 GB this seat reserves at MOG_GPU_MEM_UTIL=0.52
          -> it could not start on GPU1 AT ALL
    GPU0  empty since run 3c was stopped 2026-08-26

One line: `MOG_GPU_ID=1 -> 0` in `/opt/docker/compose/mog-sec/.env`. The compose default, the
header comment and the **homepage label** all named GPU 1 and were corrected in the same change —
a label naming the wrong card is a record that lies about where the work runs.

## Landed state

    container   vllm-mog-sec, healthy after ~400s load (22 GB model off the DEGRADED /tank)
    GPU0        51,532 MiB, idle draw 16.34 W
    GPU1        69,895 MiB, idle draw  6.42 W

⚠ **This re-arms the two-GPU load condition that tripped the Anaheim rack breaker on 08-26.**
Idle draw is negligible — ~23 W across both cards. **The risk materialises only under concurrent
load**, when both seats work at once and the box approaches the ~600 W that tripped it. The
operator accepted that with the constraint stated. See
[[2026-08-27-anaheim-breaker-and-onboot-gap]] — one circuit feeds the whole rack including ana-gw
and ana-wg, so a trip costs the site AND the way back in.

## Deploy gotchas worth keeping

- `up -d`, never `restart` — **labels bind at container creation**, so a restart keeps the old
  homepage label and the dashboard silently keeps showing the old GPU number.
- Diff deployed-vs-canonical BEFORE pushing. There was no drift here, which is the only reason
  the push was safe to make blind.
