Fleet server on-prem resource requirements

Hi,

I am setting up a Fleet Server on-premises and need guidance on resource allocation. The Elastic Cloud documentation provides the following resource requirements based on the number of agents:

Number of Agents Fleet Server Memory Fleet Server vCPU Elasticsearch Hot Tier
2,000 2GB up to 8 vCPU 32GB RAM
5,000 4GB up to 8 vCPU 32GB RAM
10,000 8GB up to 8 vCPU 128GB RAM

Could you please provide the equivalent on-premises resource requirements? Additionally, any best practices for ensuring high availability would be appreciated.

Thank you for your support.

Regards