I have a 3 node 2012 R2 Core hyper-V Cluster.
Sunday morning all the VM's failed.
In digging into it, the CSV had failed that contained all the VHD files.
I was able to move the storage to a different host and bring everything back up.
All the Virtual Machines on that host showed unsupported configuration. The Virtual Switch configuration did not match the other nodes in the cluster.
In System Center Virtual Machine Manager, there are no longer network adapters assigned to the virtual switches, and therea re no logical networks associated with any of the NICS. If you view networking, it shows the 12 Physical nics, and 3 Microsoft nics, no virtual switches.
In Failover Cluster Manager, it shows all the Network Connections as UP
In Server Manager none of the nics appear in Configure Nic Teaming.
The other 2 nodes are still working fine.
I have also installed Corefig to check, and it works fine on node 1 and 2, but on this node, it cannot display the network adapters. I get the following error.
Get-NetAdapterBinding : No matching MSFT_NetAdapterBindingSettingData objects found by CIM query for instances of the
ROOT/StandardCimv2/MSFT_NetAdapterBindingSettingData class on the CIM server:
SELECT * FROM MSFT_NetAdapterBindingSettingData WHERE ((Name LIKE 'Ethernet2')) AND ((ComponentID LIKE 'ms[_]tcpip')). Verify query parameters and retry.
At C:\corefig\IPsettings.ps1:1233 char:8
+ if ((Get-NetAdapterBinding -Name $Adapter.Name -ComponentID
ms_tcpip).Enabled ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (MSFT_NetAdapterBindingSettingData:String) [Get-NetAdapterBinding], CimJobException + FullyQualifiedErrorId : CmdletizationQuery_NotFound,Get-NetAdapterBinding
The server can still ping everything it should, but VM's on that host do not work.
Adding Networking back in Virtual Machine Manager does not get the nics back in Server Manager.
Is there a way to restore the network functionality of this host or will it be easier to evict it from the cluster, rebuild the OS, and add it back to the cluster?