Analysis of network cluster architectures

The paper deals with architectures of network clusters used in information processing and protection while transmitted through communication networks. We give a theoretical model of computation. The solution of network tasks is assumed to be linearly dependent on their size or the size of computation results. Next we consider several cluster architectures, which give the logic of cluster hosts interaction. We restrict our attention to architectures that can be implemented by widespread non-expensive off-the-shelf components. The architectures are evaluated and compared to each other by criteria of performance, availability and requirements to intra-cluster networks capacity.