Hello,
HP Smart array controllers are always configured and managed from the hostswhere the controller is installed and not from Storage like MSA 2050 which just presents volumes.
SmartCache is deployed andmanaged using the HPE Smart Storage Administrator (HPE SSA).
SSA download link for Windows 2016 https://support.hpe.com/hpsc/swd/public/detail?swItemId=MTX_080941680d974d62934ad11035
SSA download link for ESXI 6.7 https://support.hpe.com/hpsc/swd/public/detail?swItemId=MTX-b56a6fbdd4fc473c91f34c080d
You can use HPE SSA to install the license key and activate SmartCache functionality.
To configure the cache through SSA check pages 44,45 and 46 on http://itdoc.hitachi.co.jp/manuals/ha8000v/hard/Gen10/SA/882375-002_en.pdf
Hope this helps!
Thanks