Welcome to the Community,
the B110i is a software RAID controller, i.e. one that requires additional software within the operating system.
ESXi only supports hardware RAID controllers like a Smart Array P410 Controller (in case of the ML110 G7) which transparently present RAID LUNs to the operating system. If you are going to get such a controller, make sure you get one with BBWC/FBWC. This makes a huge difference in performance.
The line of ML1xx and DL1xx servers are for the "budget concious".
Basically put, Hp did their best at re-branding re-flashing bios hacking desktops into "servers" just so they'd get purchased. Exactly same when they were in the inkjet wars.
Because when you're buying something from Hp, you aren't buying one from the other guy.
You'll need a "real" server to run the HPE builds, like ML/DL3xx and up.