The widespread integration of information technology poses a number of complex tasks related to the storage, processing and transmission of data. One of the areas of development here is the development and improvement of integrated and distributed data processing systems. The features and prospects for the development of integrated and distributed data processing systems are considered. A reference security architecture is presented, which is proposed to be considered as the basic architecture of a scalable data storage and processing system for possible improvement of its performance and/or reliability characteristics based on the clustering of its network structure. The choice of the model and method used to identify the influential nodes of the network structure is substantiated.