Cisco UCS Server RAID Cache

Hi,

I'm looking for a supported RAID controller on UCS server that can do caching to SSD for ESXi 5.5 / 6 / 6.5.

May I know the Cisco UCS Blade Server / Cisco UCS C Server support the SSD caching on RAID controller?

After this setup, it can make the hot data access on SSD? How many size need prepare on the SSD? Need reconfigure the RAID, so Need clear install ESXi?