Install
sudo apt install zfsutils-linuxIf ZFS module isn't loaded automatically use
sudo modprobe zfsInfo
zpool list
zpool status
zfs listAdd space to pool
truncate -s 10G /path/to/file.img
zpool add $POOL /path/to/file.imgsudo apt install zfsutils-linuxIf ZFS module isn't loaded automatically use
sudo modprobe zfszpool list
zpool status
zfs listtruncate -s 10G /path/to/file.img
zpool add $POOL /path/to/file.img