Good Day Experts
As stated in the below reference, the server can host 25 SFF hard drives. Do you have the official procedure to extend from 8 to 16 by removing the optical drive cage and then the procedure to extend from 16 to 25.
If there is any movie that explain the steps, please share the link, it will be more helpfull.
HP ProLiant DL380p Gen8 Server - Overview
https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c03235277