https://xen-orchestra.com/blog/xen-orchestra-5-36/

The part about ZFS:

As there are many possibilities during the creation of a ZFS storage repository, you still need to use the command line (eg. zpool create zdata /dev/sdb) to create your SR.

Check this documentation for more information about ZFS SR creation.

Once the SR is created, you will have the option to select it during the SR creation directly in Xen Orchestra.

Since it's confusing and technically wrong, it should rather be something like:

As there are many possibilities during the creation of a ZFS storage repository, you still need to use the command line (eg. zpool create zdata /dev/sdb) to create a ZFS pool before creating the corresponding SR.

Check this documentation for more information about ZFS SR creation.

Once the ZFS pool is created and mounted, you will have the option to select the mountpoint during the SR creation directly in Xen Orchestra.

...and this forum is missing a "quote" button, as formating text in codeboxes doesn't work (and tags don't survive a linebreak, you have to mark it every line again).

Regards,
Christof