my doubt is: what's needed (zoning) on the 2 FCoE connections to guarantee vmotion function?
Checklist 1: Are the LUNS mapped to both the servers?
Checklist 2: Are the same luns detected by the servers under storage adapters?
Checklist 3: Is the vmkernel IP configured and able to do a vmkping between both the servers?
You are good to go 