SYMPTOMS
During a join operation of a cluster node, you may receive the following error message:
Warning: This system is not attached to all defined cluster networks.
CAUSE
The Cluster service identifies networks based on network ID numbers. The network ID number is the result of a combination of subnet mask and IP addresses. If, during the join operation, the installation detects that the current node is not attached to all cluster networks, this warning message is displayed.
For example, node 1 has the following three interfaces:
172.16.100.1 / Subnet Mask 255.255.255.0
172.16.110.1 / Subnet Mask 255.255.255.0
172.16.120.1 / Subnet Mask 255.255.255.0
While Node 2 has the following:
172.16.100.2 / Subnet Mask 255.255.255.0
172.16.110.2 / Subnet Mask 255.255.255.0
During Node 2's join procedure, this error message may be displayed if all three networks were identified as cluster networks during node 1's installation. This error message may also be displayed if there is a configuration error in the IP settings for one node of the cluster.