ax4-5i cannot connect to dell m1000e

Hi,
I am setting up a m1000e with three Poweredge m805’s connected to an ax4-5i.

The m1000e has m6220 switches but I cannot get the blade enclosure to see the san. I will be running vsphere on the blades using software iscsi, the esx servers are set up correctly for isci and the discs on the san are initialised.

Any help would be appreciated.