VMware vSphere® Virtual Volumes Support for WSFC

ESXi supports VMware vSphere^® Virtual Volumes™ storage and up to 5 node WSFC clusters. The storage array must support SCSI-3 PRs at the subsidiary LUN level. For NVMe, persistent reservation should be supported at namespace level.

• ESXi supports vVols Storage for Windows Server 2012 and above releases.
• Only Cluster-across-box (CAB) is supported.
• WSFC on vVols can work with any type of disk, "Thin" as well as "Thick"-provisioned disks.
• This feature enables customers to move away from using pRDM.
• WSFC on vVols supports vSphere HA, DRS and vMotion.
• The underlying transport protocol can be FC, iSCSI, FCoE or NVMe Fabric storage (FC, TCP).
• Virtual adapter NVMe support is added as part of vSphere 8.0 U3 along with PVSCSI.
• Cluster-in-a-box (CIB) and a mixture of CAB and CIB is not supported.
• N+1 cluster configuration, in which one ESXi host has virtual machines which are secondary nodes and one primary node is a physical box is not supported.