Improving Information Security by Implementing Fault Tolerance Concepts

Security issues are complex, and the risks of cyber crime are often difficult to stipulate, even for experts. The issues presented in this article try to be formed in a contribution to the consolidation of problems in the field of computer arhitecture cyber security. Fault tolerance is the best guarantee that high-confidence systems will not succumb to physical, design, or human-machine interaction faults. A fault tolerant system is one that can continue to operate reliably by producing acceptable outputs in spite of occasional occurrences of component failures. A fault tolerant cluster is a cluster with a set of independent nodes, connected over a network, and always with external storage devices connected to the nodes on a common input/output bus. The cluster software is a layer that runs on top of local operating systems running on each computer. Clients are connected over the networks to a server application that is executing on the nodes. The nodes of a cluster are connected in a loosely coupled manner, each maintaining its own separate processors, memory, and operating system. Special communications protocols and system processes bind these nodes together and allow them to cooperate to provide outstanding levels of availability and flexibility for supporting mission critical applications.