Improving the efficiency of using the resources of virtual data centers with a heterogeneous structure by repositioning virtual machines

The article presents an approach to managing virtualized data centers (VSDDC), which are based on virtual machine hypervisors – software management modules that allow multiple virtual machines to use the resources of a single server platform. The aim of the work is to increase the efficiency of using VSDDC resources with a heterogeneous structure through the development of mathematical and software for the relocation of virtual machines. As a result, a model of multidimensional representation of virtualized resources has been developed, taking into account the normalized value of their use by live migration algorithms and providing the possibility of calculating their imbalance, which determines the need to perform the process of repositioning virtual machines; an algorithm for repositioning virtual machines has been created based on a reasonably chosen method of solving the problem of multidimensional combinatorial optimization; an architecture of a software-implemented support system for repositioning virtual machines in VSDDC has been proposed with a heterogeneous structure; An experimental study was conducted to evaluate the efficiency of using VSDDC resources based on the proposed algorithm for solving the problem of reallocation of virtual machines for various variants of the VSDDC structure.