A quote from the Technet Planning for Highly Available Virtual Machines
It is recommended that you not deploy virtual machines that are not highly available on your host clusters. Although you can do this by using Hyper-V (VMM does not allow it), the non-highly available virtual machines will consume resources that otherwise would be available to the HAVMs
What kind of resources (CPU,memory, NIC, etc) will that non-HA VM consume? Not all VMs in production will be in Failover Cluster with Live Migration. If i put the VM into CSV but did not make it as HA, what impact does it make since i allocate same vCPU, vNic and VMemory into the VM? -- Ignoring that I lost fail over feature.