1. A method of checking a possibility of executing a virtual machine comprising a first physical computer for executing a first virtual machine and a second physical computer capable of executing a virtual machine, for checking whether the first virtual machine can be executed by the second physical computer, the method comprising the steps of: acquiring information on first logical resources accessed by the first virtual machine; acquiring setting information set to a physical adaptor of the first physical computer so that the first virtual machine accesses the first logical resources; listing second logical resources accessible in a case where the first virtual machine is executed by the second physical computer by setting the setting information to a physical adaptor of the second physical computer; and determining whether the first virtual machine can be executed by the second physical computer by comparing the first logical resources and the second logical resources.