---
tags:
  - freebsd
  - homelab
---

# NAS 

* clean install newest FreeBSD 14.2
	* move OS /home into /data/home zpool/home
	* mount ISO over IPMI
* Manage old zpool:
	* (old OS) zpool export zpool
	* (new OS) zpool import -N zpool
	* zpool status
	* zpool upgrade
	* zpool upgrade zpool
	* https://docs.freebsd.org/en/books/handbook/zfs/#zfs-zpool-upgrade
* Syncthing shares on separated ZFS subvolumes
	* zfs autosnapshot retetion policies
* pyrotechnics & private data zfs copies=2?
* Applications in VMs
	* Photoprism
	* Homeassistant? or in jail?
* Applications in seperate freebsd jails
	* Syncthing
	* Transmission
	* (existing -> upgrade) Gitea
	* Template FreeBSD 14.2
	* Samba
	* VTVBB sync + go tooling
	* Cache: pkg + freebsd update (for jails)
	* Reverse caddy SSL proxy
	* Wireguard VPN
		* https://genneko.github.io/playing-with-bsd/networking/freebsd-wireguard-jail/
* Data partitioning
	* zroot (ssd OS only)
	* zpool (14TB hdd mirror)
		* /data/home

Host OS services:
 * SSH + sshguard

Improvements & things to not forget:
* ZFS disable atime https://www.unixtutorial.org/zfs-performance-basics-disable-atime/
* backup settings from /etc and /usr/local/etc before SSD OS disk wipe
* private keychains daily snapshots (separate Syncthing share + copies=2?)
* Syncthing
	* per-share zfs subvolume
	* per-share needs .zfs ignore or else snapshots are propagated
* crontab(s) backup
* samba config
* gitea backup
* sshguard
* jails settings backup
* vanilla jails management with templates
* Migrate from zfstools auto-snapshot and prune to Python zfs-autobackup?
	* See blog https://it-notes.dragas.net/2024/08/21/automating-zfs-snapshots-for-peace-of-mind/
* URLs for (web)services with nanodash for homelab + quick access
* Upgrade gitea and migrate sqlite to postgres
	* https://forum.gitea.com/t/migrate-from-sqlite-to-postgresql/2269/
	* https://tutorialinux.com/today-learned-migrating-sqlite-postgres-easy-sequel/
* Migrate all automations Hue -> Home Assistant
* Samba network share
	* AVAHI/Bonjour autodiscovery
* Automount network shares on macOS
* ZFS zpool scrub monthly cron
* Homeassistant in FreeBSD jail rc.d service file for auto-start on boot
* ZFS volumes are seen as block devices `zfs create -V` for use with VMs for better performance
* FreeBSD pkg cache for jails
	* https://omussell.github.io/fbsd-update-cache/
	* https://forums.freebsd.org/threads/nginx-pkg-cache-help.85699/ + https://serverfault.com/a/1026574

# Syncthing share enrol on ZFS subvolume

1. Create zfs subvolume: `zfs create ...`
2. Set zfs-auto-snapshot property (for zfstools) : `zfs set ..`
3. Create share in Syncthing web GUI
4. Ignore .zfs folder (to not propagate to connected peers): filter `.zfs`

# Syncthing migrate to zfs subvolume


```
# zfs create zpool/data/syncthing/shared/...
# zfs set snapdir=hidden zpool/data/syncthing/shared/...
(optional) # zfs set copies=2 zpool/data/syncthing/shared/...
# rsync --perms --archive --progress /data/syncthing/shares/... /data/syncthing/shared/...
# echo ".zfs" > /data/syncthing/shares/.../.stignore
# zfs set com.sun:auto-snapshot=true zpool/data/syncthing/shared/...
# zfs list -t snap zpool/data/syncthing/shared/...
```
# ZFS dataset datablock copies

For extra redundancy amount of datablock copies can be set and tested:

```
# zfs create data/test-dataset/dataset-1
# zfs list
# zfs set copies=2 data/test-dataset/dataset-1
# zfs get copies data/test-dataset/dataset-1
root@mango:/data/test-dataset/dataset-1 # dd if=/dev/random of=testfile bs=64K count=1024
1024+0 records in
1024+0 records out
67108864 bytes transferred in 0.609759 secs (110058049 bytes/sec)
root@mango:/data/test-dataset/dataset-1 # ls -lah
total 131146
drwxr-xr-x  2 root wheel    3B Dec 19 19:56 .
drwxr-xr-x  3 root wheel    3B Dec 19 19:55 ..
-rw-r--r--  1 root wheel   64M Dec 19 19:57 testfile
root@mango:/data/test-dataset/dataset-1 # zfs list | grep dataset-1
data/test-dataset/dataset-1   128M   410G   128M  /data/test-dataset/dataset-1
```

# OpenZFS VM performance and database block size

https://klarasystems.com/articles/openzfs-storage-best-practices-and-use-cases-part-3-databases-and-vms/
https://github.com/openzfs/zfs/issues/7631 

## Syncthing per-share zfs subvolume

For important shares data we set copies=2 and checksum=sha256
```
# zfs create zpool/syncthing/shares/myshare
# zfs set copies=2 zpool/syncthing/shares/myshare
# zfs set checksum=sha256 zpool/syncthing/shares/myshare
```

Which shares?:
* jerry/pyrotechnics
* jerry/private
## ZFS snapshot visibility

Hide the `.zfs/snapshot` directory in the dataset so Syncthing doesn't sync it by accident when not ignored via `.stignore`:

```
# zfs list -t snapshot zpool/data/syncthing/shared/jerry/private
# zfs get snapdir zpool/data/syncthing/shared/jerry/private
# zfs set snapdir=hidden zpool/data/syncthing/shared/jerry/private
# ls /data/syncthing/shared/jerry/private/.zfs/snapshot
```

To make it visible again
```
# zfs set snapdir=visible
```

See https://docs.oracle.com/cd/E78901_01/html/E78912/gprhq.html

# See also

* [[freebsd-notes]]
* [[freebsd-jail-vanilla]]
* [[zfs-snapshots]]
* [[So you wanna do FreeBSD 14.1 and native Home Assistant?]]
* [[computers-and-machines]]

# External docs

* https://klarasystems.com/articles/openzfs-understanding-zfs-vdev-types/
* https://jrs-s.net/2018/03/13/zvol-vs-qcow2-with-kvm/
*