When you add computers to an Xsan network using Xsan Admin (Settings > Computers), those that have multiple network interfaces may appear in the computers list with their Network Services interface, rather than the interface used for metadata. This is normal.
After you authenticate and serialize an Xsan computer, it will appear in the computers list with its Bonjour name. To ensure that metadata is traveling across the intended metadata interfaces, make certain that there is a communication path between the metadata interface of each metadata controller (MDC) and each client metadata interface.
To determine the interface that each MDC is using for metadata:
Note that the Access the SAN via pop-up menu on Xsan clients will be dimmed and set to Automatically Chosen. If there is an unobstructed network link between each MDC's metadata interface and each client, the Xsan clients will automatically communicate metadata over the interface specified by the MDC's Access the SAN via pop-up menu.
To properly configure computers with multiple network interfaces, make sure that the metadata network is a separate physical network from the WAN network, as described in Xsan documentation: