Tandem System
Classification Key
: Exterior Security, Tampering
Problem
Failure in one component often starts the domino-effect and the failure is propagated to bring
about the entire system failure.
How can the system be made tolerant to this fault?
Solution
Structure a system so that an independent failure of one component will be detected quickly and so that an independent single-component failure will not cause system failure. Use multiple components to perform the tasks and report the result only if the result is similar for both the components.
Known Uses
Tandem Nonstop operating system.
Related Patterns
Encrypted Storage
Source
Open Group Catalog
Tags
Tandem System, Comparator
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