This is how to setup VMware vSAN on Cisco UCS rack mount servers connect to 6248UP Fabric Interconnects. In this case, it’s for VMware Horizon View, but this will work for a lot of use cases. The boot drive for ESX is going to be a pair of mirrored 32GB FlexFlash cards. These don’t work out of the box, so there is a few steps to get them working. There is also a few extra steps to get a the SSD to show up for ESX.