Dell VxRail: VxRail Manager network adapter is disconnected after the cluster is powered off then powered on

Summary: In an external vCenter environment, after power cycle the VxRail cluster. Network adapter 1 of the VxRail Manager VM is shown as disconnected causing the VxRail plug-in missing.

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Symptoms

After shutting down and powering on a VxRail cluster in an external vCenter environment, the VxRail plug-in is missing from vCenter UI.

Check the VxRail Manager VM configuration, the Network Adapter 1 is disconnected.
Network Adapter 1 is disconnected on xRail Manager VM configuration

When trying to configure the adapter again, the error message "Fail to connect virtual device ethernet0" appears.
Error message "Fail to connect virtual device ethernet0".

Note: ethernet0 in the VxRail Manager Operating System maps to Network adapter 1 of the VM in vCenter.
 

Cause

This is a known VMware issue that a Virtual Machine may caused by a generic configuration fault during power on.
Check the /var/log/hostd.log file on the host that the VM resides, there is an error message like:
 
N3Vim5Fault20GenericVmConfigFault9ExceptionE(Fault cause: vim.fault.GenericVmConfigFault)

Check out this VMware article for more information:
https://kb.vmware.com/s/article/2149260
https://kb.vmware.com/s/article/2116934

Resolution

1. Find the VxRail Manager whose Network Adapter 1 is disconnected, click Edit Settings in the VM Hardware tab to edit the VM hardware configuration.
Editing VM hardware configuration.

2. Take note of the network name in the drop-down menu of the disconnected adapter. This should be the vCenter Server Network, and this name is needed in a later step. Remove the disconnected adapter by clicking the x button, then click OK to confirm the change.
Edit settings screen


3. Click Edit Settings again in the VM Hardware tab to edit the VxRail Manager VM hardware configuration again.

4. Select ADD NEW DEVICE > Network Adapter.
Adding new device

5. A device called New Network is available. Click the drop-down menu in the New Network section and select the vCenter Server Network noted in step2. Click OK to confirm.
Editing settings for vCenter Server Network

Selecting network

6. Confirm that the VxRail Manager Network Adapter 1 is connected.
Network adapter is connected now
 
Article Properties
Article Number: 000217913
Article Type: Solution
Last Modified: 19 Jan 2024
Version:  2
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