opensuse 13.1 NAS server

gistfile1.sh

# install opensuse, 'server minimal selection', enable ssh

# disable firewall (and on boot) under security in yast

zypper install btrfsprogs nano smartmontools msmtp-mta mailx samba tmux

######## network interface bonding ##########

# yast > network devices > network settings
# Overview > Add > Device type = bond
# Next, set ip etc
# add spare adapter
# bond driver options = mode=balance-rr miimon=100
# save settings
# ssh in on new ip
# delete original adatper, then add adapter as slave to bond

######## reduce writes to DOM disk ##########

# noatime appended to DOM mounts in /etc/fstab
awk -i inplace '!/^#/ && ($2 != "swap") { if(!match($4, /noatime/)) $4=$4",noatime" } 1' /etc/fstab
nano /etc/fstab

## setup /tmp on TMPFS
mkdir -p /etc/systemd/system/local-fs.target.wants

cat <<-'EOF' | tee /etc/systemd/system/tmp.mount
[Unit]
Description=Temporary Directory
Documentation=man:hier(7)
Before=local-fs.target

[Mount]
What=tmpfs
Where=/tmp
Type=tmpfs
Options=mode=1777,strictatime
EOF

ln -s /etc/systemd/system/tmp.mount /etc/systemd/system/local-fs.target.wants/

cat <<-'EOF' | tee /etc/udev/rules.d/60-sched.rules
#set noop scheduler for non-rotating disks
ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="0", ATTR{queue/scheduler}="deadline"

# set cfq scheduler for rotating disks
ACTION=="add|change", KERNEL=="sd[a-z]", ATTR{queue/rotational}=="1", ATTR{queue/scheduler}="cfq"
EOF

sed -i -e "s/#Storage=auto/Storage=volatile/" /etc/systemd/journald.conf

cat <<-'EOF' | tee /etc/sysctl.d/99-sysctl.conf
vm.swappiness=1
vm.vfs_cache_pressure=50
EOF

######## setup services ##########

cat <<-'EOF' | tee /etc/msmtprc
account default
host mail.example.com
tls off
from [email protected]
aliases /etc/aliases
syslog LOG_MAIL
EOF

cat <<-'EOF' | tee /etc/aliases
root: [email protected]
EOF

cat <<-'EOF' | tee /etc/smartd.conf
DEVICESCAN -a -m root
EOF

mkfs.btrfs -f -L pool -m raid10 -d raid10 /dev/sd[b-i]
mkdir -p /pool
echo "/dev/disk/by-label/pool /pool btrfs defaults 0 2" >> /etc/fstab

systemctl enable smartd.service
systemctl start smartd.service

for x in {b..i}; do smartctl -t long /dev/sd$x; done

btrfs filesystem show /dev/disk/by-label/pool

cat <<-'EOF' | tee /etc/cron.weekly/btrfs-scrub
#!/bin/sh
awk '/btrfs/ {print $2}' /proc/mounts | while read dn; do
echo $dn
  btrfs scrub start -B $dn
done
EOF

systemctl start smb
systemctl start nmb
systemctl start winbind
systemctl enable smb
systemctl enable nmb
systemctl enable winbind