Hi All. I'm trying to troubleshoot an apparent network issue on our 2 node failover cluster, and have found that on one of the nodes, the status of the NIC team is "Host Unmanageable" in Server Manager. In Local Server properties, it shows that NIC Teaming is Disabled.
Additionally, the NIC Team is actually active and I'm not seeing any obvious connectivity issues (this team is being used by 3 vNICS for Live Migration, CSV and Management networks). The cluster fully passes the Network portion of the Cluster Validation with no issues. Additionally, the MsLbfoProvider Operational log has no errors over the last 2 years. I can't find any logs that pinpoint when exactly this happened.
The issue we're having, and I'm not sure if it's related or not, is that I can't transfer ownership of any of the CSV disks from this node to the other. If I manually disable the vNIC for the CSV network, I see the quorum disk attempt to move to the other node, but then it goes offline and the entire cluster disappears, as does access to all the CSV disks that are owned by this node. Again, I'm not sure if this is related to this teaming issue or not.
I've seen a couple of posts regarding the "Host Unmanageable" status, but in those situations, the team isn't functioning and there are blatant connectivity issues.
I'd rather not recreate the team because the current issue with the cluster means the entire cluster has to be shut down (there's 30 VMs on it.) Of course if I have to I will.
Does anyone have any suggestions on what I can do? I've attached a few screenshots which might be helpful. Thanks!
George Moore