Xsan: Metadata controllers should be on the same Ethernet network

If you're using Xsan, make sure that all metadata controllers (MDCs) access the SAN (storage area network) on the same Ethernet network. Otherwise, clients and controllers will behave unexpectedly.

If you set up multiple MDCs on different Ethernet networks, you may see unexpected and undesirable behavior, such as:

• Clients have trouble with mounting volumes.
• Controllers don't fail over.
• Volumes start up on the wrong interface.