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.
vSAN 6.7 U3 introduced native support for SCSI-3 Persistent Reservations (PR), which enables Windows Server Failover Clusters (WSFC) to be directly deployed on native vSAN VMDKs. This capability enables migrations from legacy deployments on physical RDMs or external storage protocols to VMware vSAN.
VMware, vSAN [SDS]/7.0 U1, Enterprise
Hypervisor Interconnect, Virtualization, Workload Support