Optimum Checkpoint Intervals for Fault Detection

Abstract

Computer systems have been urgently required to operate normally and effectively as communication and information systems have been developed rapidly and are remarkably complicated. However, some errors in systems often occur due to noises, human errors, software bugs, hardware faults, computer viruses, and so on, and last, they might become faults and incur their failures. To protect against such faults, various fault tolerant techniques such as the redundancy of processors and memories and the configuration of systems have been provided [10–13]. The high reliability and effective performance of real systems could be achieved by the use of redundant techniques, as shown in Sect. 1.2.