The problem of the optimal timing of equipment change taking into account the life cycle of information resources

Abstract

The paper solves the problem of the optimal timing of equipment change in the process of capacity management, taking into account the life cycle of information resources. A simple method for determining the optimal timing for replacing equipment intended for storing and processing information resources is proposed. The purpose of this task is to compare the residual value of equipment in operation and the cost of using it. Since the cost of equipment falls over time, and the cost of operating it increases, there is a moment in time when the costs begin to exceed the residual value of the equipment, and this moment is considered optimal for the transition to new, more productive equipment. This problem is considered in relation to data storage systems, which are currently implemented mainly in the form of disk systems, but the method used is universal. The method is illustrated by a numerical example for one of the IT organizations. Recommendations for servicing disk storage systems are given. Further prospects for the development of this problem with the improvement of the methodology are outlined.