| 摘要 |
PROBLEM TO BE SOLVED: To provide an appropriate computer resource by suppressing deterioration in performance in a cloud system.SOLUTION: In a computer system including: a virtualization part for allocating the computer resource of a physical computer to a virtual computer; and a management computer for controlling a virtual computer group for providing a service by one or more virtual computers, the management computer includes: a control part for acquiring the performance of the virtual computer group for providing the service, and for comparing the acquired performance of the virtual computer group with the preliminarily set performance condition of the service, and for determining the computer resource to be changed in the virtual computer group in accordance with the comparison result; and a performance measurement part for trying the service by the virtual computer corresponding to the computer resource as the object of change, and for measuring the performance of the virtual computer. The control part is configured to, when the measured performance satisfies the performance condition of the service, apply the change.SELECTED DRAWING: Figure 4 |
