Name	Description
agent
backup
decommissioning
disabled
enteringMaintenanceMode
error
exitingMaintenanceMode
master
starting
stopping

         <simpleType xmlns="http://www.w3.org/2001/XMLSchema" xmlns:vim25="urn:vim25" name="VsanHostNodeState">
            <restriction base="xsd:string">
               <enumeration value="error"/>
               <enumeration value="disabled"/>
               <enumeration value="agent"/>
               <enumeration value="master"/>
               <enumeration value="backup"/>
               <enumeration value="starting"/>
               <enumeration value="stopping"/>
               <enumeration value="enteringMaintenanceMode"/>
               <enumeration value="exitingMaintenanceMode"/>
               <enumeration value="decommissioning"/>
            </restriction>
         </simpleType>

Enum - VsanHostNodeState(vim.vsan.host.NodeState)

Enum Description