Virtualization system, management server, migration method, migration program virtual machine migration method considering inter-business communication

摘要

The virtualization system which realizes each business in an organization by a virtual machine, includes a plurality of physical servers each on which each virtual machine operates, and a management server which manages migration of the virtual machine, the management server including a migration management unit which manages migration of the virtual machine, wherein the migration management unit assumes the physical server in which the virtual machine exists as a reference physical server, and assumes the physical server whose number of network hops with the reference physical server is equal to or less than the maximum number of network hops set in advance to an organization to which a business linked with the virtual machine belongs as a candidate for a migration destination of the virtual machine.