Effective method to restore data in distributed data storage systems

In this work, a method for backup and restoring data is proposed. The data is stored on different remote disks (storage nodes) and temporary or permanent loss of access to any q of them appears. The high efficiency of the proposed method is achieved by using a theoretically proved minimum number of backup storage nodes, which is equal to the number of the disks to which access has been lost. The theoretical justification with a methodology of backup codes and their use for data recovery, which is illustrated by examples, is presented. The theoretical and experimental effectiveness evaluation of the proposed method is demonstrated as well. The proposed method is aimed to ensure a high level of survivability of system of distributed data storage for military applications.