HyperV 2016 storage redundancy on non-redundant SANs
Solution 1:
You can try using StarWind VSAN (Free) to create a highly available (HA) distributed block device between both Hyper-V hosts on top of an existing SANs attached directly to both servers. Since StarWind talks iSCSI / iSER, you can use it instead of Fibre Channel (FC).
P.S. Good walkthrough is here:
https://www.starwindsoftware.com/blog/synology-diskstation-ds916-turbocharged-with-starwind-virtual-san