On Tue, Feb 21, 2017 at 4:46 PM, Nir Soffer <nsoffer@redhat.com> wrote:

The resize button should be in the "Additional size" column when a LUN
can be resized.

Vdsm reports the size of each LUN and the size of the PV. If the LUN
and the PV can be resized you should see the button.

Nir

Perhaps he can select the storage domain in storage tab and "Scan Disks" to induce an iscsi rescan on hosts and then in manage domain see this additional column?

Just a guess...

Gianluca