Create Debian 8 ZFS pool

howto

# Adapted from: http://bernaerts.dyndns.org/linux/75-debian/279-debian-wheezy-zfs-raidz-pool

#1. Install Packages
wget http://archive.zfsonlinux.org/debian/pool/main/z/zfsonlinux/zfsonlinux_4_all.deb
dpkg -i zfsonlinux_4_all.deb
wget http://zfsonlinux.org/4D5843EA.asc -O - | apt-key add -
apt-get update
apt-get install debian-zfs parted ntfs-3g mountall

#2. ZFS Partitioning
zpool status
ls -l /dev/disk/by-id/*
parted /dev/disk/by-id/ata-WDC_WD20EFRX-68AX9N0_WD-WMC301384865 mklabel gpt
parted /dev/disk/by-id/ata-WDC_WD20EFRX-68AX9N0_WD-WMC301555904 mklabel gpt
parted /dev/disk/by-id/ata-WDC_WD20EFRX-68AX9N0_WD-WMC301557680 mklabel gpt
parted /dev/disk/by-id/ata-WDC_WD20EFRX-68AX9N0_WD-WMC301571260 mklabel gpt

#3. Pool creation
zpool create -m none -o ashift=12 naspool raidz ata-WDC_WD20EFRX-68AX9N0_WD-WMC301384865 ata-WDC_WD20EFRX-68AX9N0_WD-WMC301555904 ata-WDC_WD20EFRX-68AX9N0_WD-WMC301557680 ata-WDC_WD20EFRX-68AX9N0_WD-WMC301571260
zfs set atime=off naspool
zfs set dedup=off naspool
zpool list

#4. Mount Filesystem
mkdir /mnt/data
zfs create naspool/data
zfs set mountpoint=/mnt/data naspool/data
# Edit /etc/default/zfs to enable automount

#5. Setup Snapshots

#5.1. Install zfs-auto-snapshot
wget -O /usr/local/sbin/zfs-auto-snapshot.sh https://raw.github.com/zfsonlinux/zfs-auto-snapshot/master/src/zfs-auto-snapshot.sh
chmod +x /usr/local/sbin/zfs-auto-snapshot.sh

#5.2. Configure Snapshots
zfs set com.sun:auto-snapshot=true naspool/data
zfs get all naspool/data | grep auto-snapshot
zfs set snapdir=visible naspool/data

#5.3. Automatic Snapshots
wget -O /etc/cron.hourly/zfs-snapshot-hourly https://raw.githubusercontent.com/NicolasBernaerts/debian-scripts/master/zfs/zfs-snapshot-hourly
wget -O /etc/cron.daily/zfs-snapshot-daily https://raw.githubusercontent.com/NicolasBernaerts/debian-scripts/master/zfs/zfs-snapshot-daily
wget -O /etc/cron.weekly/zfs-snapshot-weekly https://raw.githubusercontent.com/NicolasBernaerts/debian-scripts/master/zfs/zfs-snapshot-weekly
chmod +x /etc/cron.hourly/zfs-snapshot-hourly
chmod +x /etc/cron.daily/zfs-snapshot-daily
chmod +x /etc/cron.weekly/zfs-snapshot-weekly


#6. Periodic Scrub
wget -O /etc/cron.weekly/zfs-scrub-weekly https://raw.githubusercontent.com/NicolasBernaerts/debian-scripts/master/zfs/zfs-scrub-weekly
chmod +x /etc/cron.weekly/zfs-scrub-weekly

#7. Useful commands
zfs list -t snapshot
zfs list 
zpool list
zpool status
zpool iostat 


#8 ZPool Types
#ZPool Stripe group:
zpool create vol0 /dev/sda /dev/sdb /dev/sdc

#ZPool mirror group:
zpool create vol0 mirror /dev/sda /dev/sdb

#ZPool raidz group: Similar to RAID5.
zpool create vol0 raidz /dev/sda /dev/sdb /dev/sdc

#ZPool raidz2 set: Similar to RAID5 with dual parity.
zpool create vol0 raidz2 /dev/sdb /dev/sdc1 /dev/sdd /dev/sde

#Adding a spare:
zpool add vol0 spare /dev/sde

#Add storage to a MIRROR, RAIDZ or RAIDZ2 ZPool (example): 
zpool add vol0 raidz2 /dev/sde /dev/sdf /dev/sdg

#Deleting a zpool and deleting all data within the zpool:
zpool destroy nameofzpool

#Removing a Zpool
zpool export nameofzpool

#Adding a Zpool
zpool import nameofzpool