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Title: Fault injection campaign for a fault tolerant duplex framework
Authors: Sacco, Gian Franco
Ferraro, Robert D.
von Allmen, Paul
Rennels, Dave A.
Keywords: duplex framwork
fault tolerant
fault injector
Issue Date: 3-Mar-2007
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2007.
Citation: IEEE Aerospace Conference, Big Sky, Montana, March 3-10, 2007.
Abstract: Fault tolerance is an efficient approach adopted to avoid or reduce the damage of a system failure. In this work we present the results of a fault injection campaign we conducted on the Duplex Framework (DF). The DF is a software developed by the UCLA group [1, 2] that uses a fault tolerant approach and allows to run two replicas of the same process on two different nodes of a commercial off-the-shelf (COTS) computer cluster. A third process running on a different node, constantly monitors the results computed by the two replicas, and eventually restarts the two replica processes if an inconsistency in their computation is detected. This approach is very cost efficient and can be adopted to control processes on spacecrafts where the fault rate produced by cosmic rays is not very high.
Appears in Collections:JPL TRS 1992+

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