You can configure multiple virtual processor (vCPUs) for a virtual machine. A virtual machine cannot have more vCPUs than the maximum number of logical CPUs on the host virtual server platform. The number of logical CPUs is the number of physical processor cores.

Note that the CPU core clock speed affects the range selection. When the CPU is at the low end toward 2 GHz, use the higher number of CPUs. When the CPU speed is higher, for example 3.6 GHz, use the lower number of CPUs.

The CPU core clock speed multiplied by the number of cores, must meet the aggregate CPU cycle requirements of the virtual machine. See IP Office Server Profiling.