Files
felhom.eu/documentation/audits/rehearsal-2026-10-20/B6-failures/s4-drive-pulled

B6 #4 — the data drive pulled during uploads, put back (same slot, then another) — 2026-10-20

Expected (00-expected.txt): the apps on it stop with a clear message; the upload fails honestly; nothing written to the empty mount point; after the return the apps come back; data = before.

pull detected apps household sees put back back by itself
1 (same slot) 17:56:26, during a Nextcloud upload every 2 s 17:57:08 (42 s): drive ABSENT … stopped+blocked 3 app(s) Immich, Nextcloud, Paperless stopped storage card „Leválasztva … Leállított alkalmazások: immich, nextcloud, paperless-ngx"; dashboard „Családi adatlemez — Leválasztva"; event storage_disconnected „Meghajtó váratlanul leválasztva" 17:59:25 (came back as /dev/sdc) 18:00:27 (62 s): drive RETURNED … restarted gate-stopped apps, event storage_reconnected
2 (other slot, scsi3) 18:03:33 18:04:07 (34 s) same same 18:05:05 18:05:59 (54 s)

Uploads around pull 1 (01-upload-trickle.txt, 06*): files 1–6 answered 201 (the last one 1 s AFTER the pull); then 503 while Nextcloud failed, then 404 once the gate stopped it. Afterwards: files 1–4 are listed by Nextcloud but are 0 bytes; files 5–6 are gone. The household was told each upload succeeded and nothing later says the last ones broke (the ext4 delayed-write window: data not yet on disk is lost when a disk is yanked). → R-1196 (P3). Data otherwise: the apps' other files and the films unchanged (spot checks); no writes to the empty mount point seen.