GROK DOCS · Nexus Development

DIS Excursion — NOS2-DEV full · ROSA disk gap

Autopilots paused · ~112 GB reclaim to NOS2-COLD · excursions

Record: DIS-EXCURSION-20260701-001 Date: 01 July 2026 Source: DIS · session 019f0ca2… · grok-ops-docs-pack Status: Mitigated · monitor nexql.vol growth
GPS · Duo-location Nexus Dev
Publichttps://nos2.nfsgrp.com/ch/grok-docs/dis-excursion-20260701-nos2-dev-rosa-disk
Loopbackhttp://localhost:8190/ch/grok-docs/dis-excursion-20260701-nos2-dev-rosa-disk
Spacehttps://nos2.nfsgrp.com/spaces-nav?group=sg-grok-ops&space=grok-docs
Repodocs/grok-docs/excursions/dis-excursion-20260701-nos2-dev-rosa-disk.md
PlaneN2 Product · ros-server :8190
DIS Excursion — operational incident on Prime. Session 019ef191-e439-7e82-a8d7-d470bff51266 · 2026-07-01 · Mac Studio.

1 Symptom

/Volumes/NOS2-DEV reached 100% (~32 MiB free). Writes failed (errno 28). Autopilots corpus-acquire and sis-ingest crashed every tick updating KPI JSON on the full volume.

2 Root cause (du)

PathSizeAction
data/nexql.vol~1.4 TBSovereign — no delete without migration plan
data/nexmem.vol~120 GBActive — keep
data/dr-drill~93 GBMoved to NOS2-COLD reclaim
data/nexmem.clone-*~18 GBMoved to NOS2-COLD reclaim

3 ROSA gap

N2 ROSA healthy but no preflight on NOS2-DEV; reclaim registry targets X6/Saf Dnld not dev volume; NNM disk_free_gb uses / not dev mount. ARE diagnoses disk after task failure.

4 Operator response

  1. Bootout nos2-corpus-acquire-autopilot + nos2-sis-ingest-autopilot
  2. Background mv dr-drill + nexmem.clone → /Volumes/NOS2-COLD/nos2-reclaim-20260701/
  3. Resume autopilots only after ≥10 GB free — bash scripts/nos2-autopilot-pause.sh resume

5 Follow-ups

Repo mirror: docs/grok-docs/excursions/dis-excursion-20260701-nos2-dev-rosa-disk.md