[Unit]
Description=Import ZFS pools by device scanning
DefaultDependencies=no
Requires=systemd-udev-settle.service
After=systemd-udev-settle.service
ConditionPathExists=!/etc/zfs/zpool.cache

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/bin/zpool import -d /dev/disk/by-id -aN