Patent ID: 8103778
Filing Date: 2012-01-24
Classification: G06F,Y02D

Abstract:
1. A network operations management method of a network operations management server which is connected to a plurality of physical servers via a router and switches that support VLAN (Virtual LAN) function, and operates each of a plurality of the physical servers logically as at least one virtual server and virtual servers are dynamically moved between the physical servers based on the resource consumption of each virtual server, comprising the steps of: detecting the resource consumption of each virtual server allocated to the physical servers; calculating the necessary resource amount of each virtual server based on the resource consumption; designing reallocation of the virtual servers to the physical servers based on the necessary resource amount of each virtual server and physical resources of the physical servers so that the necessary resource amounts are assigned to the virtual servers, and further based on virtual servers which had operated on physical servers bundled in different network segments but are not allocated to the same physical server; logically changing the network segment of the physical server to which the virtual servers move so that the network segment of the virtual servers is not changed even after reallocation; and reallocating the virtual servers to the physical servers based on results of the reallocation design, wherein in the step of logically changing the network segment of the physical server, the network segments of the physical servers are changed to values before the reallocation by changing the VLAN configuration of a router and switches when virtual servers must move between the physical servers beyond the network segments with the designed reallocation, and wherein the step of logically changing the network segment and the step of reallocating the virtual server are performed sequentially, for the network segments before reallocation, by selecting the network segments one by one, and the order in which the network segments are selected one by one is reversed between when the number of physical severs decreases and when it increases.