Product : VMware, vSAN [SDS]/6.7 U2, ROBO Std
Feature : Hypervisor Interconnect, Virtualization, Workload Support
Content Owner:  Herman Rutten
Summary
vSAN
iSCSI (WSFC)
Details
VMware uses a propietary protocol for vSAN.

vSAN 6.1 and upwards support the use of Microsoft Failover Clustering (MSFC). This includes MS Exchange DAG and SQL Always-On clusters when a file share witness quorum is used. The use of a failover clustering instance (FCI) is not supported.

vSAN 6.7 and upwards support Windows Server Failover Clustering (WSFC) by building WSFC targets on top of vSAN iSCSI targets. vSAN iSCSI target service supports SCSI-3 Persistent Reservations for shared disks and transparent failover for WSFC. WSFC can run on either physical servers or VMs.