There are general server specifications mentioned in the docs: Installation - DHIS2 Documentation For instance, “RAM: 64 GB or more, CPU: 16 CPU cores or more for a large instance”
You can get an idea of costs and other implementation requirements: Total Cost of Ownership of DHIS2 as national HMIS
Would you like to create a new topic about the implementation you are working on? It’ll be a good chance to ask further follow up questions to your initial question. You’re more than welcome to create a new topic in the Server Administration - Administration-du-Serveur category or the Implementation - Implémentation category with the tag server-admin .
Thank you!