Abstract
A procedure was developed to restore operability of the fault-tolerant digital systems with dynamic redundancy. A method of reconfiguration of the fault-tolerant graph, which allows one to use the redundant chords to eliminate the effect of the faulty chords of the working configurations of graph, was described. Indiscriminability of the faults of adjacent components does not inhibit restoration of operability of the fault-tolerant systems with dynamic redundancy. A procedure of single diagnosis of faulty components was developed with regard for the characteristics of the model. For some fault situations of the 2-fault-tolerant vertex 3-cube, examples of realization of the main stages of the restoration procedure—diagnosis of the faulty components and change of the working configurations—were presented.
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REFERENCES
Avižienis, A., Fault-Tolerance: The Survival Attribute of Digital Systems, Proc. IEEE, 1978, vol. 66, nos.10, pp. 1109-1126.
Karavai, M.F., Invariant-Group Approach to Studying the k-Fault-Tolerant Structures, Avtom. Telemekh., 2000, no. 1, pp. 144-156.
Maehle, E., Moritzen, K., and Wirl, K., A Graph Model for Diagnosis and Reconfiguration and Its Application to a Fault-Tolerant Multiprocessor System, 16 Int. Conf. Fault-Tolerant Computing, FTCS-16, 1986, pp. 292-297.
Vedeshenkov, V.A., Using the Redundant Chords of the k-Fault-Tolerant Graph to Eliminate the Effect of Failed Components, Avtom. Telemekh., 2003, no. 4, pp. 158-166.
Barsi, F., Grandoni, F., and Maestrini, P., A Theory of Diagnosability of Digital Systems, IEEE Trans. Comput., 1976, vol. C-25, no.6, pp. 585-593.
Preparata, F.P., Metze, G., and Chien, R.T., On the Connection Assignment Problem of Diagnosable Systems, IEEE Trans. Electr. Comput., 1967, vol. 16, no.6, pp. 848-854.
Parkhomenko, P.P., Checking Multiprocessor Computer Systems for Serviceability by Analyzing Their Syndrome Graphs, Avtom. Telemekh., 1999, no. 5, pp. 126-135.
Vedeshenkov, V.A., On the BGM Model-Based Diagnosis of Failed Modules and Communication Lines in Digital Systems, Avtom. Telemekh., 2002, no. 2, pp. 159-171.
Parkhomenko, P.P., On System Diagnosis of the Vertex and Edge Hypercube Structures of the Multiprocessor Computer Systems, Avtom. Telemekh., 1996, no. 11, pp. 165-174.
Vedeshenkov, V.A., System Diagnosis of the Failed Modules and Connections in Hypercube Structures of the Multiprocessor Computer Systems, Avtom. Telemekh., 2001, no. 12, pp. 83-94.
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Vedeshenkov, V.A. Operability Restoration Procedure for Fault-Tolerant Digital Systems with Dynamic Redundancy. Automation and Remote Control 64, 824–834 (2003). https://doi.org/10.1023/A:1023675224476
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DOI: https://doi.org/10.1023/A:1023675224476