Hello! Me too not pro with this MS product.

As far as I get info from different docs, the SAN disks should be represented using kernel module hv_storvsc. This module is loaded ok. No further information I have.

Another thing I see is that SLES have rather old version of LIS integrated and there is no packages for LIS 3.5 or 4.0 available for it. Maybe my bug is connected with this, for Hyper-V Virtual fabric is rather new feature.