Demand for high-performance computing in spaceflight applications is accelerating the development of next-generation processors for space. These processors, including Boeing's High-Performance Spaceflight Computer (HPSC) and Xilinx's Zynq UltraScale+ MPSoCs, offer feature-rich and multi-core ARM Cortex-A53 processors with hardware extensions for efficient execution and isolation of virtualized systems. This capability for virtualization enables new opportunities for enhanced fault tolerance through system-level redundancy of complete flight-software systems. In this paper, we present Virtualized Space Applications (ViSA), a framework leveraging the Xen hypervisor for deploying software-based fault tolerance for flight systems. We evaluate and analyze ViSA's enhancements to reliability and availability of the system in both an experimental lab setting and under neutron radiation-beam testing at the Los Alamos Neutron Science Center (LANSCE). As a case study, we investigate software-based replication and voting on the core Flight Executive (cFE) suite of flight software from the NASA Goddard Space Flight Center (GSFC) on the ViSA framework.


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    Titel :

    Towards resilient spaceflight systems with virtualization


    Beteiligte:
    Sabogal, Daniel (Autor:in) / George, Alan D. (Autor:in)


    Erscheinungsdatum :

    2018-03-01


    Format / Umfang :

    694667 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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