{{{#!highlight sh
# ZFS

DRIVES=$(echo /dev/sd{a..j})

for i in $DRIVES; do
    # Clear any existing partition table
    echo sudo sgdisk --zap-all $i
    echo sudo sgdisk --largest-new=1 $i
done

# TODO: should give whole disks to ZFS

DRIVE_PARTITIONS=$(echo /dev/sd{e,d,c,f,h,g,i,j}1)

NAME=archive

CACHE_DISKS="nvme-SAMSUNG_MZQL2960HCJR-00A07*-part3"
DATA_DISKS="ata-TOSHIBA_MG08ACA16TEY_*"

## create main array, 1-disk party raidz
# use ashift=12 for 4K sector disks
sudo zpool create -o ashift=12 -f $NAME raidz /dev/disk/by-id/${DATA_DISKS}

# no parity disk raid0 equivalent
sudo zpool create -o ashift=12 -f $NAME /dev/disk/by-id/${DATA_DISKS}

## add cache
sudo zpool add -f $NAME cache /dev/disk/by-id/${CACHE_DISKS}

## list devices
zpool status -v

sudo zfs set xattr=sa ${NAME}
sudo zfs set compression=lz4 ${NAME}
sudo zfs set atime=off ${NAME}
sudo zfs set relatime=off ${NAME}
# See https://blog.programster.org/zfs-record-size about setting recordsize
#sudo zfs set recordsize=16K ${NAME}  # For BitTorrent
sudo zfs set recordsize=1M ${NAME}   # For long-term storage
# Deduplication. Requires system w/ large amount of RAM
sudo zfs set dedup=on ${NAME}

## show pool information from member device, e.g. /dev/sde
sudo zdb -l /dev/sde1

## get all parameters
sudo zfs get all ${NAME}


ROOT=/mnt

mount /dev/md1 /mnt
mount /dev/md0 /mnt/boot
mount -o bind /proc /mnt/proc
mount -o bind /sys /mnt/sys
mount -o bind /run /mnt/run
mount -o bind /dev /mnt/dev

installimage -n geta -r yes -l 1 -p /boot:ext3:1G,/:xfs:128G -f yes -t yes -d nvme0n1,nvme1n1 -i /root/images/Debian-1101-bullseye-amd64-base.tar.gz
}}}

== References ==

https://pthree.org/2012/04/17/install-zfs-on-debian-gnulinux/

https://openzfs.github.io/openzfs-docs/Performance%20and%20Tuning/Workload%20Tuning.html#bit-torrent

[[https://www.delphix.com/blog/delphix-engineering/zfs-raidz-stripe-width-or-how-i-learned-stop-worrying-and-love-raidz| ZFS RAIDZ stripe width, or: How I Learned to Stop Worrying and Love RAIDZ]]: Use RAID-Z. Not too wide. Enable compression.

[[https://klarasystems.com/articles/openzfs-draid-finally/|dRAID, Finally!]]: Intro to dRAID, ZFS RAID w/ fixed record size to enable faster resilvers.