I created and validated a cluster to move to our DR Site.
After installing and connecting the server I began to have troubles with the networks.
I checked everything and re validated the cluster, there were 4 warnings:
Node Server 1 and Node Server 2 are connected by one or more communication paths that use disabled networks. These paths will not be used for cluster communication and will be ignored.
This is because interfaces on these networks are connected to an iSCSI target.
Consider adding additional networks to the cluster, or change the role of one or more cluster networks after the cluster has been created to ensure redundancy of cluster communication.
The communication path between network interface Server 1 ISCSI and network interface Sever 2 ISCSI is on a disabled network.
Node is reachable from Node by only one pair of network interfaces.
It is possible that this network path is a single point of failure for communication within the cluster.
Please verify that this single path is highly available, or consider adding additional networks to the cluster.
Following are the connectivity checks made using UDP on port 3343 from network interfaces on Node Server 1 to network interfaces on Node Server 2
Result Source Interface Name Source IP Address Destination Interface Name Destination IP Address Same Cluster Network Packet Loss (%)
Success Server 1 ISCSI 192.168.50.1 Sever 2 ISCSI 192.168.50.2 True 0
Failure Server 1 ISCSI 192.168.50.1 Sever 2 LAN 10.10.10.2 False 100
Success Sever 1 LAN 10.10.10.1 Sever 2 LAN 10.10.10.2 True 0
Failure Sever 1 LAN 10.10.10.1 Sever 2 ISCSI 192.168.50.2 False 100
After googling I found that my ISATAP network adapters suddenly turned to disabled. I uninstalled them and reinstalled and tried validating again and the validation recreates the ISATAP network card and once finished disables it.
Any help would be appreciated.