We are running a physical server that is not fully utilized. The task is to move this server to a VM. However, I am not sure how many cores and RAM to allocate to the VM. I know I can scale later, but my boss requires a cost estimate and I need as accurate an estimate as possible.
The server is running SAR, but I'm having a hard time coming up with an accurate estimate based on that.
So the question: What is the common way to determine how many cores and RAM a VM will need for the services (web server, database) to continue running smoothly in the new environment?
