Virtual server configuration changing method and virtual server configuration changing system

摘要

To provide a virtual server configuration changing method capable of selecting a computer with a small communication delay from among a plurality of computer resources existing on a wide area network for a moving client terminal and moving a VM at high speed during service.SOLUTION: A virtual server configuration changing system S including a plurality of computers 5 and a virtual resource management unit 1 for generating and activating a virtual machine 6 on each computer 5 monitors the IP address of a client terminal 7. In accordance with the change of the address of the client terminal 7, the virtual resource management unit 1 instructs generation and activation of the virtual machine 6 from which the client terminal 7 receives service for a computer 5 in which a communication delay with the client terminal 7 is a threshold value or less when the communication delay between the virtual machine 6 and the client terminal 7 exceeds the threshold value, and notifies the client terminal 7 of the address of the virtual machine 6 generated on the computer 5.SELECTED DRAWING: Figure 1