METHODOLOGY FOR DETERMINING PLACEMENT REQUIREMENTS AND INFORMATION RESOURCES RESERVATION BY DISTRIBUTED DATABASE COMPONENTS

The paper provides an approach to defining data placement requirements in a distributed database, which provides the ability to separate and back up data. The use of the developed methodology will make it possible to develop an optimal plan for distributing data to elements of a distributed database depending on the frequency of use of specific data by a specific user (software). Moreover, the frequency of use dynamically changes depending on the current tasks and conditions of the situation.
The peculiarity of the proposed approach is taking into account ensuring the required stability of the automated control system by separating and backing up data on elements of the distributed database. At the same time, for direct assessment of options for the placement of information resources, the author proposes the use of the method of branches and boundaries according to the criterion of the minimum total time for accessing information resources.