vCPU spec for an VM (application server 2012) running in ESX
Posted on 2015-01-15
I am told that too many under-utilised vCPUs in a VM can deteriorate the VM's performance. Could someone conform / deny this? (with some references)
I need to spec a Server 2012 VM (application server) running in an ESX environment. I suggested using 4 x vCPUs, 8gb RAM, and 50Gb/50GB hard drives (available disk space is limited). The application is an MI reporting tool so no heavy processing. Is 4 vCPUs too many? Would performance really be affected if not all of the vCPUs are utilized?
Any help would be appreciated.