nas: new storage host on A1SAi-2750F — 4 TB off USB onto SATA

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Builds the box that ends the usb4t dropouts: the JMicron bridge was the
least reliable device in the setup and it held the intended off-site copy
of ks4. The 4 TB now sits on direct SATA as pool `tank`.

- OS on mdraid RAID1 across two 120 GB SSDs (Intel 330 + Toshiba Q300),
  both ESPs bootable; `incus` ZFS mirror on their tails, ~22% left
  unallocated as over-provisioning
- media at /export/media, exported read-only over NFSv4 to nuc
- transmission-bt moves here (its WireGuard tunnel is in-container, so
  ks4 needed no change) and writes to the dataset locally
- backup pools nucbackup / ks4backup / nasbackup
- monitoring live: msmtp (submission+auth, verified 250), zed with
  NOTIFY_DATA, zpool-health.sh every 15 min, smartd on all three disks

Traps recorded because none of them point at their own cause: booting
with the display active kills the i915 probe and wedges incus; d-i picks
grub-pc vs grub-efi from how the installer booted; `incus storage create`
hangs forever on a mountpoint=none dataset; the BMC is deliberately never
cabled, so there is no out-of-band console.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

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This commit is contained in:

Julien Lutran

2026-08-30 23:53:30 +02:00

co-authored by Claude Opus 5

parent a2003a11e8

commit 58dcaa5d41

5 changed files with 906 additions and 9 deletions

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ks2/nuc-seed.md → ks2/nas-seed.md