Speakers
Description
Commercial-of-the-shelf computer modules (CMs) bear the potential to bring
unprecedented computing power to space. Combining CM redundancy for criti-
cal and detect-recover schemes for less critical operations, we highlight how CMs
can match the safety of radiation-hard CMs, at a fraction of costs. We combine
CMs with an FPGA voter to provide fault masking through agreement where
necessary and parallel computing where possible, highlighting the benefits but
also the inherent costs of CM-level hypervisor-controlled radiation tolerance.
Early results from a proton-beam radiation test confirm the need for hypervisor-
controlled reactive power cycling to fend-off single-event latch ups and proactive
rejuvenation to counter other radiation faults at all levels of the hardware / soft-
ware stack. The results also indicate the need for external monitoring and fast
boot to also withstand the most severe situations, like solar flares
Affiliation of author(s)
University of Luxembourg
| Track | Fault Tolerance Methodologies and Tools |
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