1. Check your /etc/rc.conf

rc.conf

zfs_enable="YES"

2. Start service

# service zfs start

3. Create pool(s) on your drive(s)

# zpool create disk2 /dev/ada0

4. Create storage directory on pool and set it write permissions

# mkdir /disk2/wrstorage2
# chmod 777 /disk2/wrstorage2

5. Add this directory as WolfRecorder storage

6. Now just use it

7. Also you always can check your ZFS pools status with following command

# zpool status

Install zfsutils

$ su -
# sed -i 's/main/main contrib non-free non-free-firmware/' /etc/apt/sources.list
# apt update
# apt install zfsutils-linux
# modprobe zfs

Create your pool and mount drive

# zpool create disk2 /dev/sdb
# zfs set mountpoint=/disk2 disk2

Create storage directory

# mkdir /disk2/wrstorage2
# chmod 777 /disk2/wrstorage2

Then add this directory as WolfRecorder storage