Cisco UCS iSCSI Best Practice

We recently purchased XIO that is now running 4.x and now moving to the Cisco UCS platform for our compute environment using iSCSI as our choice of SAN connectivity.

When running iSCSI with Cisco UCS, they recommend to use 2 different vlans per Fabric Interconnect iSCSI vnics (example FI-A vlan 100 and FI-B 101).

My question, how is this accomplished (configured) on the XIO side of the house? We have 1 X-brick and 4 10G interfaces (2 per SC). How do I configure the XIO (target) interfaces so the ESXi hosts can access the LUNs via  the 2 vlans?

Thanks