Verify that a host cluster meets the requirements for enabling vSAN.

  • All capacity devices, drivers, and firmware versions in your vSAN configuration must be certified and listed in the vSAN section of the VMware Compatibility Guide.

  • A standard vSAN cluster must contain a minimum of three hosts that contribute capacity to the cluster. A two host vSAN cluster consists of two data hosts and an external witness host. For information about the considerations for a three-host cluster, see Design Considerations for a vSAN Cluster.
  • A host that resides in a vSAN cluster must not participate in other clusters.