A method includes receiving, via a controlling Baseboard management controller (BMC), a request for a virtual machine (VM); providing, via the controlling BMC, a notification for requesting the VM to one or more candidate BMCs, to make at least one of the candidate BMCs provide an available response in response to resources monitored by the second BMC are sufficient for the VM; and assigning, via the controlling BMC, an assigned BMC to perform a VM creating operation according to the available response, such that the assigned BMC requests one or more processors corresponding thereto to create the VM.