Wednesday, July 17, 2013

Failover Cluster validation test on Windows Server 2012 with warning

This case is connected with the previous post Unidentified network on teamed interface where Windows Server 2012 had teamed adapter in switch dependent / address hash / LACP mode. I had two identical server boxes configured the same, including network configuration. Both servers were planned to be part of failover cluster. Teamed adapter was having multiple interfaces with different VLAN ids. One of the interfaces was management interface with specified VLAN ID, and one interface with different id for internal cluster communication.
Failover cluster validation configuration wizard was finishing successfully with warning on Network part for Validate IP configuration test. The Validate IP configuration test was complaining about duplicate physical address on management and "private" (cluster communication) interface on both nodes. This warning is expected since both servers were using teamed adapter, and interfaces for management and cluster communication were with different VLAN ID created from same teamed adapter.
The configuration is valid and supported from Microsoft, and is published in following KB
http://support.microsoft.com/kb/974264 .

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