Finally got this resolved with the help of Dell support folks. Basically had to disable spanning tree on the VRTX switch. This is so that our corporate switch doesn't block it due to BPDU guard. The engineer from Dell said if we disable spanning tree then we can't do link aggregation ( use two uplink cables into the VRTX switch ).  I don't think we need that, so was ok with just disabling spanning tree.
I have installed the OS's on all four blades, but none have any networking. I believe I need to attach an uplink cable to my main network somewhere on the switch. Then do some configurations? I believe this is explained in Chapter 3 of the User guide under "Configuring enclosure components" . I tried reading about Fabric A,B and C but am confused by it all. What I want is for each blade to grab an IP via DHCP from the uplink cable to the main network. I then want each blade to be able to communicate with each other via the local 10 GbE network. I am not sure where to plug in this uplink cable? See picture below. In the future I may add one or two workstations to the switch . These workstations should also get a IP via DHCP from the main network and be able to communicate with the four blades via the local 10 GbE network.   [IMAGE]
How to configure switch on VRTX?