After you make any changes to Virtual SAN configuration, vCenter Server performs validation checks for Virtual SAN configuration. Validation checks are also performed as a part of a host synchronization process. If vCenter Server detects any configuration problems, it displays error messages.

Problem

A number of error messages indicate that vCenter Server has detected a problem with Virtual SAN configuration.

Solution

Use the following methods to fix Virtual SAN configuration problems.
Table 1. Virtual SAN Configuration Errors and Solutions
Virtual SAN Configuration Error Solution
Host with the VSAN service enabled is not in the vCenter cluster Add the host to the Virtual SAN cluster.
  1. Right-click the host, and select Move To.
  2. Select the Virtual SAN cluster and click OK.
Host is in a VSAN enabled cluster but does not have VSAN service enabled Verify whether Virtual SAN network is properly configured and enabled on the host. See Configuring Virtual SAN Network.
VSAN network is not configured Configure Virtual SAN network. See Configuring Virtual SAN Network.
Host cannot communicate with all other nodes in the VSAN enabled cluster Might be caused by network isolation. See Networking Requirements for Virtual SAN documentation.
Found another host participating in the VSAN service which is not a member of this host's vCenter cluster. Make sure that the Virtual SAN cluster configuration is correct and all Virtual SAN hosts are in the same subnet. See Designing the Virtual SAN Network.