NAS

Warning

I am no longer use Ubuntu for my NAS therefore this document will likely not be updated anymore.

Packages

Add Fish PPA

sudo apt-add-repository ppa:fish-shell/release-3

Install Packages

sudo apt install -y apt-transport-https ca-certificates containernetworking-plugins curl ffmpeg figlet fish fzf gettext git htop ifenslave iputils-ping net-tools lolcat mailutils msmtp msmtp-mta nano neofetch ntpdate podman psmisc rclone software-properties-common tmux tree uidmap unzip zfs-zed zfsutils-linux dmraid gdisk hdparm lvm2 nfs-common nfs-kernel-server nvme-cli open-iscsi samba samba-vfs-modules smartmontools socat

Networking

Add or replace file /etc/netplan/00-installer-config.yaml

network:
  version: 2
  ethernets:
    enp6s0f0:
      dhcp4: yes
      mtu: 9000
    enp6s0f1:
      dhcp4: yes
      mtu: 9000

ZFS

Mirrored Zpool

Create initial pool and set configuration

sudo zpool create -o ashift=12 -f eros mirror \
    /dev/disk/by-id/scsi-SATA_WDC_WD120EDGZ-11_9LHWA5KG \
    /dev/disk/by-id/scsi-SATA_WDC_WD120EMFZ-11_9MG0AHZA
sudo zfs set atime=off eros
sudo zfs set compression=lz4 eros

Attach more mirrors

sudo zpool add eros mirror \
    /dev/disk/by-id/scsi-SATA_ST12000VN0007-2G_ZCH0F1CH \
    /dev/disk/by-id/scsi-SATA_WDC_WD120EMFZ-11_X1G3B01L

Add spares

sudo zpool add -f eros spare \
    /dev/disk/by-id/scsi-SATA_WDC_WD120EMFZ-11_QGGETR5T

Datasets

Create datasets

sudo zfs create eros/Media
sudo zfs create eros/Minio

Share dataset over NFS

sudo zfs set \
    sharenfs="no_subtree_check,all_squash,anonuid=568,anongid=100,rw=@192.168.42.0/24,rw=@192.168.1.0/24,ro=192.168.150.21,ro=192.168.150.28" \
    eros/Media
sudo zfs set \
    sharenfs="no_subtree_check,all_squash,anonuid=568,anongid=100,rw=@192.168.42.0/24,rw=@192.168.1.0/24" \
    eros/Minio

Dataset Permissions

sudo chmod 770 /eros/Media
sudo chown -R devin:users /eros/Media

Snapshots

Install zrepl by following these instructions.

Add or replace the file /etc/zrepl/zrepl.yml

global:
  logging:
    - type: syslog
      format: human
      level: warn
  monitoring:
    - type: prometheus
      listen: :9811
      listen_freebind: true

jobs:
  - name: daily
    type: snap
    filesystems:
      "eros<": true
    snapshotting:
      type: cron
      cron: "0 3 * * *"
      prefix: zrepl_daily_
      timestamp_format: dense
    pruning:
      keep:
        - type: last_n
          count: 7
          regex: "^zrepl_daily_.*$"

Start and enable zrepl

sudo systemctl enable --now zrepl.service

Give a local user access to a specific datasets snapshots
```
sudo zfs allow -u jeff send,snapshot,hold eros/Media
```

NFS

Force NFS 4 and update threads

Add or replace file /etc/nfs.conf.d/local.conf

[nfsd]
vers2 = n
vers3 = n
threads = 16

[mountd]
manage-gids = 1

Non ZFS NFS Shares

Add or replace file /etc/exports.d/local.exports

/share/PVCs 192.168.1.0/24(sec=sys,rw,no_subtree_check,all_squash,anonuid=568,anongid=100)
/share/PVCs 192.168.42.0/24(sec=sys,rw,no_subtree_check,all_squash,anonuid=568,anongid=100)

Dataset Permissions

sudo chmod 770 /share/PVCs
sudo chown -R devin:users /share/PVCs

Reload exports
```
sudo exportfs -arv
```

Time Machine

Install required tools

sudo apt install samba samba-vfs-modules

Create ZFS datasets and update permissions

sudo zfs create eros/TimeMachine
sudo zfs create eros/TimeMachine/devin
sudo zfs create eros/TimeMachine/louie
sudo chown -R devin:users /eros/TimeMachine
sudo chmod -R 770 /eros/TimeMachine

Set a smb password for user
```
sudo smbpasswd -a devin
```

Add or replace file /etc/samba/smb.conf

[global]
min protocol = SMB2
ea support = yes
vfs objects = fruit streams_xattr
fruit:aapl = yes
fruit:metadata = stream
fruit:model = MacSamba
fruit:posix_rename = yes
fruit:veto_appledouble = no
fruit:nfs_aces = no
fruit:wipe_intentionally_left_blank_rfork = yes
fruit:delete_empty_adfiles = yes
spotlight = no

[devin]
comment = Devin's Time Machine
fruit:time machine = yes
fruit:time machine max size = 1050G
path = /eros/TimeMachine/devin
browseable = yes
write list = devin
create mask = 0600
directory mask = 0700
case sensitive = true
default case = lower
preserve case = no
short preserve case = no

[louie]
comment = Louie's Time Machine
fruit:time machine = yes
fruit:time machine max size = 1050G
path = /eros/TimeMachine/louie
browseable = yes
write list = devin
create mask = 0600
directory mask = 0700
case sensitive = true
default case = lower
preserve case = no
short preserve case = no

Restart samba
```
sudo systemctl restart smbd.service
```

Set up Time Machine on MacOS

sudo tmutil setdestination -a smb://devin:${smbpasswd}@expanse.internal/devin

System

Disable apparmor

sudo systemctl stop apparmor
sudo systemctl mask apparmor

Disable mitigations and apparmor in grub

sudo nano /etc/default/grub
# GRUB_CMDLINE_LINUX="apparmor=0 mitigations=off"
sudo update-grub
sudo reboot

Disable swap

sudo swapoff -a
sudo sed -i '/ swap / s/^/#/' /etc/fstab

Notifications

Info

Restart msmtpd after changing: sudo systemctl restart msmtpd.service

Add or replace file /etc/aliases

mailer-daemon: postmaster@
postmaster: root@
nobody: root@
hostmaster: root@
usenet: root@
news: root@
webmaster: root@
www: root@
ftp: root@
abuse: root@
noc: root@
security: root@
root: devin@buhl.casa

Info

Restart msmtpd after changing: sudo systemctl restart msmtpd.service

Add or replace file /etc/msmtprc

defaults
auth off
tls  off
tls_trust_file /etc/ssl/certs/ca-certificates.crt
logfile /var/log/msmtp

account        maddy
host           smtp-relay.turbo.ac
port           25
from           devin@buhl.casa
tls_starttls   off

account default: maddy

aliases /etc/aliases

Info

Restart smartd after changing: sudo systemctl restart smartd.service

Add or replace file /etc/smartd.conf

DEVICESCAN -a -o on -S on -n standby,q -s (S/../.././02|L/../../6/03) -W 4,35,40 -m devin+alerts@buhl.casa

Info

Restart zed after changing: sudo systemctl restart zed.service

Add or replace file /etc/zfs/zed.d/zed.rc

ZED_DEBUG_LOG="/var/log/zed.debug.log"
ZED_EMAIL_ADDR="devin@buhl.casa"
ZED_EMAIL_PROG="mail"
ZED_EMAIL_OPTS="-s '@SUBJECT@' @ADDRESS@ -r devin+alerts@buhl.casa"
ZED_NOTIFY_VERBOSE=1
ZED_NOTIFY_DATA=1
ZED_USE_ENCLOSURE_LEDS=1

Misc

Replace a Drive

Info

Enable autoexpand on the pool with sudo zpool set autoexpand=on eros

sudo zpool offline eros /dev/disk/by-id/scsi-SATA_ST12000VN0007-2G_ZCH0F1CH
sudo zpool replace eros /dev/disk/by-id/scsi-SATA_ST12000VN0007-2G_ZCH0F1CH /dev/disk/by-id/scsi-SATA_ST22000NM001E-3H_ZX201HJC

When resilvering is complete detach the drive...

sudo zpool detach eros /dev/disk/by-id/scsi-SATA_ST12000VN0007-2G_ZCH0F1CH

Badblocks

Warning

This command is very destructive and should only be used to check for bad sectors, this also take ashile so be sure to start it in a screen

sudo badblocks -b 4096 -wsv /dev/disk/by-id/scsi-SATA_ST12000VN0007-2G_ZJV01MC5

Shred

Warning

This command is very destructive and should only be used to completely wipe the drive, this also take ashile so be sure to start it in a screen

sudo shred -vfz -n 4 /dev/disk/by-id/scsi-SATA_ST12000VN0007-2G_ZJV01MC5

Lenovo SA120

Due to the loudness of the fans, they can be adjusted by using AndrewX192/lenovo-sa120-fanspeed-utility.

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