When installing ESXi with standard image VMware-VMvisor-Installer-7.0U3n-21930508.x86_64, at the selecting storage step, raid card ThinkSystem RAID 5350-8i PCIe 12Gb Adapter could be invisible.
However raid is created and visible in bios/UEFI.
Driver "smartpqi" would be used by ThinkSystem RAID 5350-8i PCIe 12Gb Adapter.
Install ESXi with custom OEM image, there raid storage becomes visible.