did you check this:
http://www.ovirt.org/develop/release-management/features/storage/lun-resize/

I had similar trouble but after rebooting host or restarting vdsmd the resize button become visible.

On Thu, Mar 2, 2017 at 7:41 AM, Koen Vanoppen <vanoppen.koen@gmail.com> wrote:

Dear All,

I'm trying to expand a direct ICSI-LUN on my vm...
Can't seem to figure out how... :-)
The hypervisors are seeing it... My VM and ovirt GUI doesn't...
I already did the echo 1 > /sys/class/scsi_device/1\:0\:0\:0/device/rescan on my vm, still no change...

Kind regards,

Koen

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