Host deletion from VDS fails due to a template VM connected to an NSX segment

Products

• VMware vCenter Server
• VMware NSX

Issue/Introduction

• No VM connected to any DVPGs on the VDS is running on the target Host.
  
  
• The Host deletion from the VDS fails with the following message:
  

  vDS <VDS_NAME> port <PORT_UUID> is still on host <HOST_NAME> connected to <TEMPLATE_VM_NAME> nic=#### type=vmVnic

   
• You see messages similar to the following in /var/log/vmware/vpxd/vpxd.log on vCenter Server:
  

  ####-##-##T##:##:##.###Z error vpxd[06792] [Originator@6876 sub=Default opID=<ID>:<ID>] [VpxLRO] -- ERROR task-<ID> -- <UUID>(<UUID>) -- dvs-<ID> -- vim.DistributedVirtualSwitch.reconfigure: :vim.fault.Reso
  urceInUse
  --> Result:
  --> (vim.fault.ResourceInUse) {
  -->    faultCause = (vmodl.MethodFault) null,
  -->    faultMessage = (vmodl.LocalizableMessage) [
  -->       (vmodl.LocalizableMessage) {
  -->          key = "com.vmware.vim.vpxd.dvs.portOnHost.label",
  -->          arg = (vmodl.KeyAnyValue) [
  -->             (vmodl.KeyAnyValue) {
  -->                key = "dvs",
  -->                value = "<VDS_NAME>"
  -->             },
  -->             (vmodl.KeyAnyValue) {
  -->                key = "port",
  -->                value = "<PORT_UUID>"
  -->             },
  -->             (vmodl.KeyAnyValue) {
  -->                key = "host",
  -->                value = "<HOST_NAME>"
  -->             },
  -->             (vmodl.KeyAnyValue) {
  -->                key = "ent",
  -->                value = "<TEMPLATE_VM_NAME>"
  -->             },
  -->             (vmodl.KeyAnyValue) {
  -->                key = "keyAndType",
  -->                value = "nic=#### type=vmVnic"
  -->             }
  -->          ],
  -->          message = <unset>
  -->       }
  -->    ],
  -->    type = "vim.dvs.DistributedVirtualPort",
  -->    name = "<PORT_UUID>"
  -->    msg = ""
  --> }
  --> Args:
  -->
  --> Arg spec:
  --> (vim.DistributedVirtualSwitch.ConfigSpec) {
  -->    dynamicProperty = <unset>,
  -->    configVersion = "##",
  -->    name = <unset>,
  -->    numStandalonePorts = <unset>,
  -->    maxPorts = <unset>,
  -->    uplinkPortPolicy = (vim.DistributedVirtualSwitch.UplinkPortPolicy) null,
  -->    uplinkPortgroup = <unset>,
  -->    defaultPortConfig = (vim.dvs.DistributedVirtualPort.Setting) null,
  -->    host = (vim.dvs.HostMember.ConfigSpec) [
  -->       (vim.dvs.HostMember.ConfigSpec) {
  -->          dynamicProperty = <unset>,
  -->          operation = "remove",
  -->          host = 'vim.HostSystem:<HOST_UUID>:host-<ID>',
  -->          backing = (vim.dvs.HostMember.Backing) null,
  -->          maxProxySwitchPorts = <unset>,
  -->          vendorSpecificConfig = <unset>
  -->       }
  -->    ],
  -->    extensionKey = <unset>,
  -->    description = <unset>,
  -->    policy = (vim.DistributedVirtualSwitch.SwitchPolicy) null,
  -->    vendorSpecificConfig = <unset>,
  -->    contact = (vim.DistributedVirtualSwitch.ContactInfo) null,
  -->    switchIpAddress = <unset>,
  -->    defaultProxySwitchMaxNumPorts = <unset>,
  -->    infrastructureTrafficResourceConfig = <unset>,
  -->    netResourcePoolTrafficResourceConfig = <unset>,
  -->    networkResourceControlVersion = <unset>
  --> }

Environment

VMware NSX
VMware vCenter Server

Cause

This issue occurs if the VDS was previously prepared by NSX and had a template VM connected to an NSX segment, and the template VM has been migrated to another host. vCenter still thinks its port is on the original Host.

Resolution

• This issue is fixed in VMware vCenter Server 7.0 U3.
• One of the followings will unblock this situation.
  • Delete the template VM if it is not used.
  • Convert the template VM to a normal VM, and migrate it to the other Host. Convert the VM to a template VM after the Host deletion from the VDS.
    Regarding converting procedure, refer to Convert a Template to a Virtual Machine.
  • Unregister the template VM, and register again with the .vmtx file after the Host deletion from the VDS.
    Regarding registering procedure, refer to Register a VM or VM Template with vCenter Server.